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Some content in this article is derived from information featured in Harry Potter and the Cursed Child, and, as such, spoilers will be present.
- "How extraordinarily like your father you are, Potter. He too was exceedingly arrogant. A small amount of talent on the Quidditch field made him think he was a cut above the rest of us too. Strutting around the place with his friends and admirers... The resemblance between you is uncanny."
- —Severus Snape's assessment of Harry Potter[src]
Professor Severus Snape (9 January, 1960 – 2 May, 1998) was a half-blood wizard who was the son of the witch Eileen Snape (née Prince) and Muggle Tobias Snape. During his lifetime, Severus Snape was Potions Master (1981-1996), Defence Against the Dark Arts professor (1996-1997), and Headmaster (1997-1998) of Hogwarts School of Witchcraft and Wizardry (which he attended as a student from 1971-1978. He was also member of the Order of the Phoenix and played a very important role in both of the Wizarding Wars against Lord Voldemort.
Severus Snape was raised in the Muggle dwelling of Spinner's End, which was in close proximity to the home of the Evans family, though in a poorer area. He met Lily and Petunia Evans when he was nine, and fell deeply in love with Lily, becoming a close friend of hers. In 1971 he began his first term at Hogwarts School of Witchcraft and Wizardry where he was Sorted into Slytherin House. This put him in the same year as his one love, Lily Evans, but unfortunately for him, in rival houses. Severus became the immediate enemy of James Potter and Sirius Black and was a frequent victim of their bullying. Snape developed a passion for the Dark Arts at a young age, which increased as his desire for revenge grew stronger. Snape became involved with the bullies in Slytherin House, many who were pure-blood supremacists. This put his friendship with Lily, a Muggle-born, under great strain, until it was eventually broken in their fifth year. In an attempt to win back Lily's affections, Snape joined the Death Eaters along with a group of his fellow Slytherins.
Severus was made a member of the Slug Club, presumably because of his brilliance at potion-making, and Horace Slughorn kept a picture of him as a student, clutching his copy of Advanced Potion-Making. Despite this, Horace did not have many hopes for Severus's future, as his photograph was kept behind many others.
Shortly before Lily Evans was murdered by Lord Voldemort, Snape changed sides and became a member of the Order of the Phoenix and double agent during the Second Wizarding War. With tremendous difficulty, Snape prevented Lord Voldemort from learning the truth about his loyalties. Despite the opinions of most others including Harry during his early life, Albus Dumbledore trusted Snape for reasons that were kept between them both until their deaths. When he died, it was revealed that his deep strong love for Lily Evans caused him to redeem himself, joining Dumbledore's cause at the prospect of her protection (and, after her death, that of her son) from Lord Voldemort.
The relationship between Dumbledore and Snape would be one of an unusually strong loyalty, so much so that Snape agreed to kill Dumbledore upon Dumbledore's own request. Before Dumbledore's death, Snape promised to protect the students of Hogwarts from the Death Eaters, who would inevitably take control of the Ministry of Magic, as well as the school. Snape later participated in the Battle of Hogwarts, but was murdered by Lord Voldemort who mistakenly believed that Snape was the master of the Elder Wand (an immensely strong and powerful wand that Voldemort deeply desired, one of the Deathly Hallows) when in reality, Harry Potter was the master of the Elder Wand, because Draco Malfoy had disarmed Dumbledore and Harry had disarmed Malfoy.
After his death, Harry Potter ensured that Severus Snape's portrait remained at Hogwarts, honouring him as a hero, despite their significant personal differences. In addition Harry later named his second son Albus Severus Potter in honour of him.
- Lily Evans: "Doesn’t your dad like magic?"
- Snape: "He doesn’t like anything, much."
- — Severus and Lily discussing his family[src]
Severus Snape was born 9 January, 1960 to Eileen Prince, a pure-blood witch, and Tobias Snape, a Muggle, making him a half-blood wizard. Severus, whose father was neglectful and possibly even violent, began to identify with his mother's family and created a secret nickname from his mother's maiden name, calling himself "the Half-Blood Prince." His unhappy relationship with his father may have been the origin of his disdain for Muggles. It is implied that Severus was friendless and uncared for by his parents. This lack of care largely shaped Severus's bitter disposition and cruel behaviour later in his life.
Severus grew up at Spinner's End, a shabby suburb of Cokeworth. This area of town was near a dirty river and full of dilapidated houses, disused factories and broken down street lamps. Through the rest of his life, Severus continued to return there when he was not at school. The young Severus is depicted as being unwashed and wearing ill-fitting clothes "that were so mismatched that it looked deliberate". As a child, Severus was neglected and his parents often fought with one another. He could not wait to leave for Hogwarts at the end of the summer.
Lily Evans and her family lived in the same town, close to Spinner's End. After watching her for some time, Severus noticed her evident magical abilities and began making friendly overtures. The two bonded quickly and it appears that he was very interested in Lily right from the beginning, though she only regarded him as a good friend. During this time he also developed a contempt towards her older sister, Petunia. This was most likely because she made disparaging comments about his clothes and residence, but may also be because she was a Muggle.
Information from Severus's own memories of his first interactions with Lily and Petunia suggests that he was an awkward child with poor social skills. Even when it was important to him to make a good impression, he always seemed to have trouble doing so.
Hogwarts years (1971-1978)
Severus attended Hogwarts School of Witchcraft and Wizardry as a student from 1971-1978, and was Sorted into Slytherin House, at that time led by Potions master Horace Slughorn. On the way to Hogwarts for his first year, Severus sat with Lily Evans on the train, where they met James Potter and Sirius Black. This hostile first encounter would set the tone for the antagonism between the three of them for the rest of his life.
According to Sirius, Severus excelled in the Dark Arts from an early age. At the age of eleven, he knew more curses and hexes than most of the seventh year students. He reportedly was friends with a gang of Slytherins who later became Death Eaters, including Avery and Mulciber. Severus was credited with creating a good number of popular spells like Levicorpus, Liberacorpus, Muffliato, and curses like Langlock, the Toenail Growth Hex, and his signature curse, Sectumsempra. Other Slytherins that Sirius mentioned as being friends with Severus included Evan Rosier and Wilkes. Severus also had contact with Lucius Malfoy, who was a prefect during his first year and greeted him kindly when he was Sorted into the Slytherin House. Most likely the two had good rapport at Hogwarts (which could also be a reason why Narcissa Malfoy trusted Severus to take care of Draco Malfoy and why he seemed to favour Draco during his later teaching years). Remus Lupin and Peter Pettigrew were also classmates of Severus.
James and his group of friends were constantly at war with Severus throughout their school years. Severus's memories, recorded in the Pensieve, suggest that he was an introverted and studious individual, whereas James was arrogant, popular, and athletic. Immediately upon meeting him, James disliked Severus for expressing a desire to be in Slytherin. James's big crush on Lily, and Severus's close friendship and unrequited love for her also heightened the tension between the two.
One recorded memory in the Pensieve bears witness to James bullying him, turning him upside-down to reveal his underwear in front of many students, including Lily. Lily came to Severus's defence, but this only made things worse: in a subsequent lashing out at James in an attempt to recover his lost dignity, Severus inadvertently called Lily a Mudblood. Lily refused to forgive him for it, even after his repeated apologies. This would forever be Severus's worst memory. It was seen by Harry whilst in the Pensieve.
Severus noticed that Remus kept disappearing during the full moon and once followed him past the Whomping Willow (after being tipped off on how to do so by Sirius Black) to confirm his suspicions. This act could have cost Severus his life or his humanity (he could have been turned into a werewolf by Remus's bite) if it had not been for James. When James found out what had happened, he went after Severus and managed to save him just before he got to the Shrieking Shack while Remus was in his wolf-form. Albus Dumbledore swore Severus to secrecy, but the true nature of Remus was clear to Severus. By their seventh year, James had grown out of his immaturity and arrogance to the point that Lily agreed to start dating him, even though he never grew out of his hatred for Severus — according to Sirius, Severus had always been a "special case" with James. Lily ended up marrying James, which only strengthened Severus's bitterness towards him.
Severus was a talented wizard even in childhood. It was apparent through the notes and scribbles in his potions textbook that he made time during classes to invent curses, charms, and clever potion innovations, while simultaneously learning the required textbook lessons.
Severus's potions textbook contained a few spells and curses which he was credited with inventing: Levicorpus, which grabbed the victim by the ankle and dangled them upside-down, and Sectumsempra, which caused slashing bloody cuts (guided by the wand gestures of the caster, like a blade/sword) which bled extensively. Levicorpus somehow escaped from Severus's secrecy, and became very popular around Hogwarts towards the end of his fifth year at school. Some other spells were Muffliato, which filled the ears of anyone nearby with an unidentifiable buzzing sound and another hex that caused toenails to grow at an unnaturally fast rate. Severus's book later fell into the hands of Harry Potter in 1996. Harry used the Half-Blood Prince's tips and earned praise with that year's Potions master, Professor Slughorn. Harry considered the Half-Blood Prince to be a better teacher than Severus, unaware at that point that Severus was the Prince, much to Harry's later displeasure.
The potions textbook has an inscription indicating it is Property of the Half-Blood Prince. Hermione Granger's research revealed that Prince was the maiden name of Severus's mother and so the nickname was revealed to be a combination of his mother's maiden name and his blood status. Harry Potter also pointed out the similarities between Snape's nickname and the name Voldemort gave himself. This nickname was apparently a secret, as Remus did not remember it ever being used publicly by Severus.
First Wizarding War (1978-1981)
As a Death Eater
Severus Snape eventually joined the ranks of Lord Voldemort's Death Eaters, and was the spy responsible for informing Voldemort about the prophecy foretelling his downfall. In early 1980, Snape eavesdropped on an interview for Divination Professor Sybill Trelawney and Albus Dumbledore at the Hog's Head Inn. In the course of the interview, Trelawney prophesied that at the end of July, a child would be born who would cause the destruction of Lord Voldemort (which prompted Dumbledore to hire her, partly for her own safety). At that time it was not clear who was meant by the prophecy. Two children of prominent wizarding families were born that year at the end of July: Harry Potter and Neville Longbottom.
Dumbledore reported at the Wizengamot trial of Igor Karkaroff that Severus had come to him and explained that he had been the one to overhear the prophecy, and reported it to Voldemort. However, Snape did not hear the entire prophecy, as the barman caught him eavesdropping and threw him out.
As a double agent
- Albus Dumbledore: "If you loved Lily Evans, if you truly loved her, then your way forward is clear. You know how and why she died. Make sure it was not in vain. Help me protect Lily's son."
- Snape: "Very well. But never — never tell, Dumbledore! This must be between us! Swear it! I cannot bear... especially Potter's son [...] "
- — Snape switches sides[src]
Severus suffered terrible remorse when Voldemort decided that Harry Potter was the subject of the prophecy, and that Lily Evans, the woman whom he always loved, was now in danger as a result of his actions. He begged Voldemort to spare her in exchange for the lives of her husband and son. But, knowing that he could not leave Lily's safety in question at the hands of someone who could turn back at his word on a mere whim, and that Lily would probably defend her child to the last breath, Snape also approached Albus Dumbledore to ask him to save Lily. He pleaded with Dumbledore to hide her, along with her husband and son if he had to. Dumbledore agreed, but insisted that Severus serve him as a spy among the Death Eaters. In fact, it was Snape's request to Voldemort which allowed Lily to let herself die in order for Harry to live, when Voldemort attempted to murder him, his curse backfired and Voldemort's body was destroyed.
Despite Dumbledore's best efforts to protect the Potters, Voldemort was tipped off by Peter Pettigrew, one of James' best friends, a spy, and he found them anyway. After Lily's death, Snape was devastated and distraught to the point of wishing himself dead, but Dumbledore urged him to ensure Harry's safety out of respect for Lily's memory; Snape was initially reluctant, for with the Dark Lord gone, the danger had been averted, only for Albus to insist that he would return and everyone (particularly the boy) would be in danger when that happened. So Snape spent the rest of his life protecting her child, Harry Potter, who was often said to strongly resemble James. Distrusted for his past as a Death Eater by those on Albus Dumbledore's side, and hated by other Death Eaters for living as Dumbledore's stooge for ten years, Snape continued living on to complete Dumbledore's plan to protect Harry and defeat Voldemort.
Between the wars (1981-1995)
- "You are here to learn the subtle science and exact art of potion-making. As there is little foolish wand-waving here, many of you will hardly believe this is magic. I don't expect you will really understand the beauty of the softly simmering cauldron with its shimmering fumes, the delicate power of liquids that creep through human veins, bewitching the mind, ensnaring the senses... I can teach you how to bottle fame, brew glory, even put a stopper in death — if you aren't as big a bunch of dunderheads as I usually have to teach."
- —Snape teaching Potions at Hogwarts[src]
When Severus Snape began his teaching career at Hogwarts in 1981, he initially applied for the position of Defence Against the Dark Arts, but was rejected multiple times. Many students were under the impression that this was because Dumbledore feared Snape might return to his old ways if allowed to teach his favourite subject, but in reality it was because Dumbledore was aware by that point that the job had been jinxed by Voldemort. Knowing that no Defence Against the Dark Arts teacher would last longer than a year, Dumbledore instead employed Snape in the position of Potions master and Head of Slytherin House, following the retirement of veteran Professor Horace Slughorn. Though it seemed rather uncommon for someone as young as Snape to be named Head of any House at Hogwarts, it is possible that Snape was the only Slytherin teacher left at the school, or that he was placed there to keep a watchful eye on the young Slytherins, who were frequently accused of (but not without reason) joining the Death Eaters.
Following Voldemort's fall, Snape never attempted to find his old master, for he, like many other Death Eaters, believed that Voldemort was gone for good, and he could use Dumbledore's protection to avoid serving time in Azkaban. Whether Snape truly believed that Voldemort was dead or fabricated this as an alibi for still loyal Death Eaters remains unknown. However, given his closeness to Dumbledore and the fact that they openly discussed Voldemort, it is more likely that Snape knew deep inside him that the Dark Lord was not truly dead yet and that he could and would return someday. Eventually, he accepted this thought as unavoidable. This would bring him into conflict with fanatical Death Eaters like Bellatrix Lestrange later in life, but Snape was almost immediately forgiven by the reborn Voldemort, because he could provide him with thirteen years of information on Dumbledore and the Order of the Phoenix.
In the meantime and with Voldemort vanished, he focused on his teaching duties at Hogwarts. As a professor, Snape was a stickler for discipline, with little patience for foolishness, yet extremely effective in his job and well respected by the other professors. His deep understanding of potion brewing, as shown by his expert concoction of Wolfsbane Potion, transformed the knowledge of potions from mere chemistry to an art. This was unfortunate for his classes. He would accept students into his N.E.W.T. classes only if they had achieved an 'Outstanding' mark at their O.W.L. examination, as he felt that anyone with a lower mark than that would lack both the necessary passion for and the devotion to the complex and demanding subjects that would follow in the last two years of school. Though strict, Snape had a certain level of bias for Slytherins, giving them undeserved rights over the others, while looking down on the other students somewhat unfairly.
Snape's role during this entire time was extremely sensitive and required master espionage and image-control skills. As he and Dumbledore anticipated that Voldemort would return eventually, and many of Snape's actions would be reported on by Death Eater spies or gained through torture and Legilimency, even if Snape's true mentality and intentions were inaccessible to the Dark Lord, he had to consider every decision and relationship carefully. He treated Harry Potter with maximal coldness and never missed an opportunity to cause him trouble, as any variation from this would have cast suspicion on him in Voldemort's eyes. But in reality, he protected Harry on numerous occasions; he was happy enough to cause the boy, who resembled his father, Snape's hated rival from school days, humiliation and trouble, but never any actual harm or danger. He also had to avoid becoming too aware of Voldemort's plans, to avoid being held responsible for allowing Harry and his friends to foil them. But he handled all this brilliantly, and his every action during this period created no mistrust on the part of Voldemort.
1991-1992 school year
- Snape: "You don't want me as your enemy, Quirrell."
- Quirinus Quirrell: "I-I don't know what you —"
- Snape: "You know perfectly well what I mean. — your little bit of hocus-pocus. I'm waiting."
- Quirinus Quirrell: "B-but I d-d-don't —"
- Snape: "Very well. We'll have another little chat soon, when you've had time to think things over and decided where your loyalties lie."
- — Snape approaches Quirrell after having attempted to seize the Philosopher's Stone[src]
In 1991 Nicolas Flamel, a friend of Albus Dumbledore, had the Philosopher's Stone that was keeping him alive moved from his safe in Gringotts to Hogwarts for safe keeping. Snape contributed to the defences set up around the magical artefact by adding a Potions Riddle as one of the obstacle. This was the one obstacle that used logic as a key factor and not magic.
Harry Potter became a student in Snape's classes in 1991. The two of them detested each other almost immediately. Harry's resemblance to his father and his acquired 'celebrity' status brought the worst out of Snape from their very first Potions lesson. Although Snape had pledged an oath to Dumbledore that he would protect Harry, such oath did not stand in the way of Snape's bias to Slytherin House, nor did it mean Harry was to get any special treatment in academics.
However, Snape later saved Harry's life during a game of Quidditch. When Harry's broomstick was jinxed, Snape performed a counter-curse to prevent Harry from being hurled off the broom. For the next match, Snape insisted on refereeing to make sure it did not happen again. This did not come across well to the other teachers, who believed that he was just trying to injure the Gryffindor team's chances of winning.
Throughout the year, Snape did everything he could to prevent Professor Quirrell from obtaining the Philosopher's Stone. It is unknown whether or not he was aware that he had been sharing his body with Lord Voldemort. But after Quirrell's backhanded attempt to murder Harry during the Quidditch match, he probably suspected it.
1992-1993 school year
- Harry Potter: "Maybe he's left, because he missed out on the Defence Against the Dark Arts job again!"
- Ron Weasley : "Or he might have been sacked! I mean, everyone hates him —"
- Snape: "Or maybe he's waiting to hear why you two didn't arrive on the school train."
- — Snape confronts Harry and Ron after they arrive in a flying car[src]
Snape played a relatively minor part during the 1992-1993 school year. When Harry and Ron arrived at Hogwarts in a flying Ford Anglia, he threatened to have them expelled, but Professor Dumbledore and Professor McGonagall stepped in and made sure it did not happen. Later on in the year, Harry, Ron and Hermione successfully managed to smuggle Polyjuice Potion ingredients from Snape's personal cabinets while creating a spectacle of a diversion in his classroom.
During this year, Professor Snape also worked with the new Defence Against the Dark Arts professor, Gilderoy Lockhart, in running the Duelling Club, seizing the opportunity to blast Professor Lockhart against a wall. Professor Snape was also among the professors who tried to get Professor Lockhart out of the way so that students could be escorted to safety.
By describing the Polyjuice Potion in Potions class (which Hermione remembered), and demonstrating the Disarming Charm to the Duelling Club, Snape taught Harry two skills that ultimately proved critical to his success.
1993-1994 school year
During this school year, Snape demonstrated his expertise with potions by brewing the complex Wolfsbane Potion for the new Defence Against the Dark Arts professor, Remus Lupin. Throughout this year, Snape suspected that Lupin may be helping Sirius Black, an escapee from Azkaban, enter Hogwarts castle. This suspicion stemmed from Lupin's friendship with Sirius and Harry's father James Potter when they were all at Hogwarts as students. It is revealed that Sirius once played a joke on Snape, telling him that he could find out where Lupin was going every month if he climbed into the Whomping Willow. James realised the danger and saved Snape's life by pulling him back.
Near the end of the school year, Snape ambushed Black as he entered the school again and attempted to apprehend him. Snape appeared from under the Invisibility cloak that Harry had left near the Whomping Willow, tied Remus up, and while engaged in a vociferous argument with Harry and Hermione, he attempted to arrange to send Sirius and Remus to Azkaban Prison. However, before he could give Sirius and Remus to the Dementors, Harry, Ron, and Hermione simultaneously disarmed Snape. Snape also said that Harry, Ron, and Hermione faced suspension for being out-of-bounds. Since Harry aided Black's escape, Snape was beside himself with indignation. On the last day of school, he revealed to his students that Lupin was a werewolf, forcing Lupin to resign his post.
1994-1995 school year
Snape was apoplectic when Harry's name was unexpectedly chosen from the Goblet of Fire. Despite the fishy circumstances surrounding the incident and the immense dangers that Harry was facing, Snape refused to believe that he did not deliberately enter himself in for the Triwizard Tournament. Indeed, he continued to treat Harry as maliciously as ever, thinking that he had broken into his office to steal ingredients to aid him in the underwater phase of the tournament.
Harry later discovered that Snape was once a Death Eater but had been vouched for by Dumbledore. Dumbledore told the Wizengamot that although Snape had indeed worked for Voldemort, he changed sides and turned spy against him. Dumbledore reassured Harry that Snape's loyalties were genuine, though he refused to tell Harry why.
Harry was not the only one who had expressed scepticism over Snape's reform. Professor Moody had Snape's office searched at the beginning of the year, claiming that it was an "Auror's privilege" and that Dumbledore mentioned to be watchful of him. Snape was resentful of Moody's accusations but could not do anything about it. (In truth, Moody was actually an impostor who had been raiding Snape's cabinet for ingredients to make Polyjuice Potion.)
However, despite Snape's unawareness of the real reason why Harry was in the tournament, it had not escaped his notice that Lord Voldemort's mark was becoming increasingly more pronounced throughout the year. Karkaroff, who dreaded retribution from Voldemort, panicked and confided his fears in Snape. Snape had no sympathy for him and offered no help. The former consequently fled when the Dark Lord returned, but Snape who remained in the Dark Lord's good favour had nothing to fear from him in the term of retribution.
After the Third Task and the Rebirth of Lord Voldemort, Barty Crouch Jr took Harry to Moody's office. Crouch Jr started to question Harry about what had happened, but was shortly rescued by Professors Dumbledore, McGonagall, and Snape. Soon the effects of Crouch Jr's Polyjuice Potion wore off; in the excitement he had neglected to take it at the proper time to maintain his cover. Under the effects of Veritaserum provided by Professor Snape, Crouch described Lord Voldemort's plan to resurrect himself and Crouch Jr's own involvement in getting Harry to the graveyard. Dumbledore and Snape attempted to convince a disbelieving Cornelius Fudge that Voldemort had returned. Snape was subsequently sent on a secret mission by Dumbledore to rejoin the Death Eaters and spy on the Dark Lord as a re-doubled agent.
Second Wizarding War (1995-1998)
1995-1996 school year
- Dolores Umbridge: "Ah, yes. The time has come for answers, whether he wants to give them or not. Have you bought the Veritaserum?"
- Snape: "I'm afraid you have used up all my stores interrogating students... Unless you wish to poison Potter — and I assure you, I would have the greatest sympathy if you did — I cannot help you."
- — Snape witholding Veritaserum from Umbridge[src]
During the 1995-1996 school year, with Voldemort having returned to his body, Snape carried on with his work as a re-doubled agent for Dumbledore. During the summer, he was seen at Number 12, Grimmauld Place giving reports to the Order of the Phoenix. Snape frequently taunted Sirius about the latter not being able to take an active role in the Order's missions due to his fugitive status.
Back at school, Snape's allegiance to the Order had no effect on his dislike for Harry. When Harry began having visions about Lord Voldemort, Dumbledore asked Snape teach Harry Occlumency in order to shut down the telepathic connection. However, the mutual hostility made it difficult for them to work productively during the sessions. Indeed, Snape had to be very careful in the ways that he helped Harry, should Voldemort read Harry's mind and discover his servant working against him. At one point, Harry peeked into the Pensieve when Snape was out of his office and witnessed a private memory of Snape being bullied and harassed by Harry's father. Upon returning, Snape threw him out of the office and forbade him from ever coming back again. For all the rest of that semester, he treated Harry with redoubled contempt and fury and ignored him in class whenever possible.
Towards the end of the school year, Dolores Umbridge captured Harry and questioned him on the whereabouts of Dumbledore. She sent for Snape to provide Veritaserum to force Harry to reveal any information he may be hiding. Snape claimed that his supplies of Veritaserum were exhausted earlier, when she had attempted to use the drug surreptitiously to force information from Harry (though ironically it is highly likely that he lied). Snape withheld further assistance.
It is later revealed that Snape had actually given fake potion on the prior attempt. Upon hearing Harry's cryptic warning about Sirius's capture, he swiftly carried the message back to the other Order members, and helped come up with a plan for them to come to the rescue in the Department of Mysteries while he searched the Forbidden Forest for Harry. But since Umbridge was near, he pretended to ignore it. However, despite the fact that Snape came to his aid multiple times throughout the year, Harry hated him as much as ever, believing Snape's goading spurred Sirius into joining the battle.
1996-1997 school year
- "Severus... please...."
- —Dumbledore's last words, pleading Snape to end his life[src]
Prior to the start of the 1996-1997 school year, Snape was visited by Bellatrix Lestrange and Narcissa Malfoy at his home in Spinner's End. Narcissa's son Draco had been given a difficult task by Voldemort, and Narcissa swore Snape to an Unbreakable Vow, on pain of death should he break it, that he would protect Draco, help him complete Voldemort's task, and finish the task himself if Draco failed. When questioned by Bellatrix about his loyalties, Snape claimed to have been working for Voldemort (rather than for Dumbledore) ever since Voldemort's return, and explained his actions in the previous years in that light. In addition, he pointed out that Dumbledore's protection had kept him out of Azkaban and free to operate on Voldemort's behalf.
At the start-of-term feast at Hogwarts, Dumbledore announced he had finally appointed Snape as Professor of Defence Against the Dark Arts, much to Harry's shock and displeasure. Snape was no less severe in teaching Defence than he had been with Potions, although he did allow students who achieved below "Outstanding" at O.W.L. level to enter his N.E.W.T. classes. Having finally acquired the position he desired for so long, Snape taught the lessons with a tone of passion for the Dark Arts he sought to undo, something he did not do for Potions.
Horace Slughorn, a retired Hogwarts teacher, replaced Snape as Potions Master. Slughorn loaned Harry an old Potions textbook, in which Harry found marginalia including helpful tips on how to make potions better and a variety of hexes and jinxes seemingly invented by an unknown student. The book was inscribed "This Book is the Property of the Half-Blood Prince". With the help of the notes, Harry quickly became the best potion-maker in the class and Slughorn's favourite student. Snape, however, was suspicious when he heard about Harry's newfound success, maintaining that he "never had the impression that [he] had been able to teach Potter anything at all".
Later, in a fight with Draco, Harry cast one of the Prince's spells marked "For Enemies" (Sectumsempra) and was horrified when it caused devastating wounds to Draco's face and chest. Snape rushed to the scene and healed Draco's wounds, and then interrogated Harry about the source of the spell. When Harry refused to tell him anything, Snape demanded that he bring him all of his books. Harry hid the Prince's book and gave Ron Weasley's copy of the book to Snape instead. Snape punished Harry by giving him a detention every Saturday for the rest of the year, including during the final Quidditch match of the season.
Before leaving with Dumbledore to find a Horcrux, Harry discovered from Professor Trelawney that it had been Snape who overheard the Prophecy and told it to Voldemort, thus causing Voldemort to hunt Harry and his parents. Despite this and Harry's angry questions, Dumbledore maintained that he trusted Severus. After returning to Hogwarts, Harry and Dumbledore alit on the school's Astronomy Tower. Gravely weakened by Voldemort's potion, and the school being under attack by Death Eaters, Dumbledore asked Harry to fetch Snape for him. Before Harry could leave, Draco arrived and disarmed Dumbledore, intending to carry out Voldemort's ordered assassination. Draco was unable to bring himself to commit the murder, however, and Snape killed the headmaster himself.
An enraged Harry (who had been immobilised by Dumbledore for his own protection and witnessed the killing while under his Invisibility cloak) chased Snape, Draco, and the Death Eaters as they fled the castle. The two of them engaged in a fierce duel, which became increasingly one-sided. Snape easily blocked Harry's attempts to attack him and jeeringly pointed out Harry's mistakes, but refused to strike back. However, he became enraged when Harry called him a coward and began using his own spells against him, resulting in him blasting Harry back against the ground.
During the confrontation, Snape also revealed himself to be the "Half-Blood Prince" (being the son of Tobias Snape, a Muggle, and Eileen Prince, a pure-blood). Harry was unable to stop Snape before the latter passed through the school gates and Disapparated.
On the run
- Hermione Granger: "I don't think he wanted to associate himself with that book. I don't think Dumbledore would have liked it very much if he'd known. And even if Snape pretended it hadn't been his, Slughorn would have recognised his writing at once."
- Harry Potter: "I should have showed the book to Dumbledore. All that time he was showing me how Voldemort was evil even when he was at school, and I had proof Snape was, too —"
- — Harry and Hermione upon finding out Snape was the owner of the textbook[src]
After killing Albus Dumbledore and fleeing the school, Snape once more rejoined the ranks of the Death Eaters. In the summer of 1997, Snape informed Lord Voldemort that Harry was to depart from his relatives' house four days before his birthday. On Dumbledore's orders, Snape told the Death Eaters the correct date so as to continue Voldemort's trust in him.
Snape then fed Mundungus Fletcher the idea of using seven decoys of Harry Potter during his movement to a place of safety so that when the Death Eaters arrived, they would not know who the real one was. In order to be consistent in his own role as a Death Eater, Snape confunded Fletcher so that he would not remember who told him.
Because of Snape's information, when the Order of the Phoenix moved Harry from 4 Privet Drive they were ambushed by Death Eaters, and the Battle of the Seven Potters ensued. During the battle, Snape accidentally sliced George Weasley's ear off with his wand while aiming at another Death Eater.
- "Severus Snape, long-standing Potions master at Hogwarts School of Witchcraft and wizardry, was today appointed Headmaster in the most important of several staffing changes at the ancient school. Following the resignation of the previous Muggle Studies teacher, Alecto Carrow will take over the post while her brother, Amycus, fills the position of Defence Against the Dark Arts professor. 'I welcome the opportunity to uphold our finest Wizarding traditions and values' —"
- —Daily Prophet, 1 September, 1997[src]
During the 1997-1998 school year, Snape was named Headmaster of Hogwarts, while Death Eaters Alecto and Amycus Carrow were appointed Deputy Heads. Snape used his position as Headmaster to discreetly protect the students and to contain the Carrows. It is later understood that, during his time as Headmaster, Snape consulted with the portraits of the previous Headmasters, and continued to receive instructions from Dumbledore's portrait.
Before the beginning of the first term, Rufus Scrimgeour removed the Sword of Gryffindor from its glass case in the headmaster's office for examination, along with the other items Dumbledore left in his will. However, this sword was a fake. The real sword had been hidden in a hole in the wall behind Dumbledore's portrait.
When its counterfeit had been returned to Dumbledore's office, another attempt to seize the sword was made by Luna Lovegood, Neville Longbottom, and Ginny Weasley. After pretending to punish them by sending them into the forest with Hagrid, Snape passed the fake sword along to Bellatrix Lestrange, who kept it in her vault at Gringotts, thinking that it was real.
Upon being informed of Harry Potter's whereabouts, Dumbledore's portrait instructed Snape to give Harry the real sword without the latter knowing it. Not only would Harry not have taken kindly to Snape's appearance after his attack on George Weasley, and also for the murder of Dumbledore of which Harry was an eye-witness, it would have been dangerous if Voldemort were to read his mind and see Snape helping him. Snape then took the real sword, hid it in a frozen pool of water near Harry's camping spot, and used his Patronus to guide Harry to it. After having rescued Harry from drowning, Ron claimed to have supposedly seen someone watching from the shadows. Though not stated, it is extremely likely to have been Snape keeping an eye on Harry and only departing once he knew the latter was safe.
As a headmaster, Snape was thoroughly disliked by many of his students. The old members of Dumbledore's Army reformed the organisation after Lord Voldemort gained control over the school and started up a revolt against Snape and the Carrows. Neville Longbottom, Luna Lovegood, and Ginny Weasley were at the forefront of the rebellion. Snape, following up on his promise to Dumbledore to keep the students safe, subtly undermined the violent, sadistic attempts of the Carrows to keep control by doing things such as sending students to help Hagrid as punishments rather than the Carrows' more dangerous alternatives. Neville stated that Snape was hardly ever seen whilst headmaster. This could be because Snape remained in the headmaster's office most of the time or was searching for/following the trio to make sure they were safe and or making progress. Also, during his tenure, the Educational Decree Number Twenty-Four was re-enacted and students had taken to (most likely under Snape's orders) marching from point A to point B together like they were in military school.
Ousting as Headmaster
Harry, Ron, and Hermione returned to Hogwarts Castle in search of one of the last of Voldemort's Horcruxes, which they believed to have something to do with Rowena Ravenclaw. The only idea they could come up with was Ravenclaw's lost diadem, and so Harry and Luna Lovegood went to the Ravenclaw Common Room to get an idea of what the diadem looked like. Here they were met by Alecto Carrow, who pressed her finger to the Dark Mark and summoned Voldemort. Amycus Carrow arrived, but so did Minerva McGonagall, and Snape subtly allowed the inept Death Eater Carrow siblings to be knocked out in the battle. As McGonagall rushed to meet with the other Heads of Houses to protect the school from Voldemort's oncoming attack, she was stopped by Snape, who demanded she tell him if she knew the whereabouts of Harry Potter.
The two began fighting, and while Snape put up a good defence, McGonagall was soon helped by the arrival of the other Heads of House: Sprout, Flitwick, and Slughorn. Outnumbered, Snape fled the castle, jumping out the window of a classroom and using the ability to fly without a broom, which he presumably learned from Voldemort.
Battle of Hogwarts and death
Later in the evening, Snape was summoned by Voldemort to the Shrieking Shack. Voldemort explains that he believes that Snape is the master of the Elder Wand from killing Dumbledore and that Snape must die so that the elder wand can be his. Snape tries to explain the situation but Voldemort has Nagini kill Snape by biting into his neck before he can finish. Before dying, Snape released a cloud of memories and told Harry, who had watched the entire scene from a hidden spot, to take them. Harry later took the memories to the Pensieve in Dumbledore's office. From these memories, Harry learned all about Snape's past. In the first scene, Harry discovered that Snape had befriended Lily as a nine-year-old child when they lived near each other.
Upon their arrival at Hogwarts, the Sorting Hat placed Snape and Lily into Slytherin and Gryffindor Houses, respectively. They remained close friends for the next few years until they were driven apart by Snape's interest in the Dark Arts and by Lily's interest in James Potter. The friendship finally ended following the incident that Harry had briefly witnessed in his fifth year, in which Snape accidentally insulted Lily. Despite this separation, and Snape's enmity toward Lily's eventual husband James Potter, Snape continued to love Lily on a much deeper and stronger romantic level for the rest of his life.
Snape was next seen going to Dumbledore and desperately begging him to hide the Potters from Lord Voldemort, who was planning on targeting Lily's son to prevent a prophecy from being fulfilled. Snape had been the one who previously revealed said prophecy to Voldemort, not knowing at first that it was referring to Lily and her family. Though he asked Voldemort to spare Lily, Snape still feared for her safety, as he knew that Voldemort could not be relied on to grant this small favour. Snape became a double agent for the Order of the Phoenix so that Dumbledore could ensure Lily's protection, employing Occlumency to hide his duplicity from his master.
Snape felt devastating pain and remorse when Lily was found and murdered. From that point on, he agreed to help Dumbledore protect her son and fight against Lord Voldemort. Snape demanded, however, that his feelings about Lily be kept a secret. Dumbledore complied and never told anyone the real reason why Snape switched sides.
Snape's memories then revealed that Dumbledore had been afflicted by a powerful curse cast on Marvolo Gaunt's ring, one of Voldemort's Horcruxes, prior to the start of Harry's sixth year at Hogwarts. Although Snape's knowledge of the Dark Arts enabled him to slow the spread of the curse, the curse would have ultimately killed Dumbledore within a year. Dumbledore, aware that Voldemort had ordered Draco to kill him, asked Snape to kill him instead as a way of sparing the boy's soul and of preventing his own otherwise slow, painful death. Although Snape was reluctant, even asking about the impact of such an action on his own soul, Dumbledore implied that this kind of coup de grâce would not damage a human's soul in the same way murder would. Furthermore, once Snape had done the deed, he would gain Voldemort's complete trust and learn more of his plans. Snape agreed to do as the Headmaster requested. Snape's memories also provided Harry with the information he needed to ensure Voldemort's final defeat, in the form of conversations Snape had with Dumbledore.
Because of the memories, Harry finally understood where Snape's true allegiances always were. He also showed Harry the memory where Albus Dumbledore had told him about Harry himself being a Horcrux (although he did not understand it) because Dumbledore had asked him to pass that along to Harry when the time was right.
- "Severus Snape wasn't yours, Snape was Dumbledore's, Dumbledore's from the moment you started hunting down my mother! [...] He was Dumbledore's spy from the moment you threatened her, and he's been working against you ever since! Dumbledore was already dying when Snape finished him!"
- —Harry reveals Snape's true colours to Voldemort during their final duel[src]
During the final duel between Harry and Voldemort, Harry finally told him that Snape had been, in fact, Dumbledore's man. Harry also revealed that Snape was never the true master of the Elder Wand, because Snape never defeated Dumbledore; the two had arranged his death as he would have died either way. Before Snape killed Dumbledore, Draco Malfoy disarmed Dumbledore. Therefore, Draco was the true master of the Elder Wand, not Snape. However, Harry had overpowered Draco at Malfoy Manor and taken his wand. Because of the subtleties governing wand ownership discussed by Garrick Ollivander, Harry was master of the Elder Wand. Snape's true loyalties remained hidden due to his skills as an Occlumens and the fact his actions were motivated by love, which completely eluded Voldemort.
Snape's portrait was not automatically put into the Headmaster's office since he had essentially abandoned his post during the Battle of Hogwarts. However, Harry, in one of his acts of showing reconciliation towards Snape, made sure that his portrait was placed there. It is possible that Harry gave his corpse a proper burial after the war ended. Rita Skeeter also published a book about Snape's life, entitled Snape: Scoundrel or Saint?, sometime after his death. If it is consistent with Skeeter's other works, it is probably riddled with inaccuracies designed to tarnish Snape's reputation.
Albus Severus Potter, the second son of Harry, and the only one of Harry's children to have inherited Lily's bright green almond-shaped eyes, is named after Snape. When Albus was worried that he may be Sorted into Slytherin, Harry responded that Albus was named after two headmasters, one of whom was a Slytherin and "probably the bravest man I ever knew".
By his fourth year at Hogwarts, Scorpius Malfoy had learned all about Snape's history and motivations, allowing him to convince an alternate version of Snape- in a timeline where Voldemort won the Battle of Hogwarts and thus ruled wizarding Britain- that he came from a different timeline so that Snape could help Scorpius meet the local resistance and undo what he had unwittingly done to the past.
Severus Snape was a thin man with sallow skin, a large, hooked nose and yellow, uneven teeth. He usually dressed in flowing black robes which made him resemble "an overgrown bat". He had shoulder-length, greasy black hair which framed his face in curtains, curling lips and dark, penetrating eyes that resembled tunnels. As a Death Eater, he bears the Dark Mark on his left inner forearm.
The younger Snape had a "stringy, pallid look", being "round-shouldered yet angular" and with a "twitchy walk that recalled a spider", as well as "long oily hair that jumped about his face."
Snape had a strong, authoritative presence. He spoke in a soft, contained voice most of the time, except during the occasional instances when he lost his temper.
Personality and traits
At times, Snape could appear cold, cynical, malicious, bitter, and sarcastic. He had a commanding presence that exuded gravitas, authority and control; like Professor McGonagall, he had the ability to keep a class quiet without effort. He tended to hold grudges and was extremely spiteful toward those whom he disliked. In particular, he disdained Gryffindor students, considering them to be arrogant and attention-seeking. Descriptions of his social interactions as a child suggest that he had poor interpersonal skills.
Snape was a repressed, solitary man with no friends. In his early life, he was insecure, vulnerable, and yearned to be part of something better. As a child, the bleak normality of working-class suburbia compounded with his neglectful Muggle father inspired in him a contempt for ordinariness. This urgent desire to be a part of something powerful and important was what drew him to Lord Voldemort's inner circle. Snape's bitterness and resentment towards the world was exacerbated even more by the relentless bullying he endured in school, causing him to shut himself in even more. Snape was not a prejudiced individual despite the Death Eater beliefs of pure-blood superiority, but was rather against towards Muggles, presumably because of his sour experience with both his father and Petunia Evans, but held no ill-will towards Muggle-borns. The foundation of him scolding Lily Evans by calling her Mudblood was to not appear weak in front of his fellow Death Eater students than actual supremacist views. He also deeply regretted this as it was what ended his friendship with Lily and defended Hermione Granger when Phineas Nigellus Black called her Mudblood, his manner of speaking in this instance being uncharacteristically explosive and filled with more emotion than he normally displayed.
- "Fools who wear their hearts proudly on their sleeves, who cannot control their emotions, who wallow in sad memories and allow themselves to be provoked this easily — weak people, in other words — they stand no chance against his powers! He will penetrate your mind with absurd ease!"
- —Snape tries to get Harry to empty himself of emotion[src]
He was an intensely private individual who viewed emotional displays as a sign of shameful weakness. As an Occlumens, Snape had superb emotional control and was adept at concealing his thoughts and feelings, which allowed him to maintain his cold, collected demeanour. However, he had his limits, and was not incapable of losing his temper, particularly when it came to dealing with Harry Potter. Inevitably, he also became furious when he thought he was being pitied or accused of cowardice.
Snape was a formidable sorcerer, displaying consummate skill in many different branches of magic. His extensive knowledge and abilities were rivalled by very few, if any other witches and wizards of his age. Snape was also unusually cerebral for a wizard, possessing a subtle and keenly analytical mind. As a result, Snape was extremely intelligent and calculative, with a mind for strategy and deduction. He was also a profound misanthrope who appeared to have a prominent hatred of almost every child under his tutelage, except of course for Slytherins. He valued logic and cunning above magical power.
As a professor, Snape was known for his cavalier and harshly authoritarian attitude towards his teaching. His standards for his classes were much higher than that of the other professors, as he only allowed students with the very best grades to continue into advanced study. He developed a loving passion for Dark Arts, originally in the hopes to cover the shame of his heritage, and his interest in it led him to repeatedly apply for the Defence Against the Dark Arts professor post every year, despite being rejected for 16 years. When he finally got his wish, Snape taught the course with a loving caress in his voice, far beyond simply respecting the Dark Arts as a dangerous foe, something he did not show in his post as the Potions Master. He also taught this class slightly fairer than he did in Potions, such as lowering his entrance standards and biassed for the N.E.W.T. level, allowing more students to enter the advanced studies of his favourite class, and placed students from his own house, such as Vincent Crabbe and Gregory Goyle, in detention for failing to do acceptable work the second time around after failing their O.W.L. the previous year.Ultimately, it was Snape's past and his love for Lily Evans that defined his inner being. His love for Lily Evans became most noticeable by his patronus, a Doe, just like Lily's. Upon overhearing the Prophecy, he immediately informed his then-master of its contents, unaware that this would endanger Lily and her family. It was only after Lily's death that Snape realised the full extent of his actions. He suffered terrible remorse for what he had done and spent the rest of his life in constant danger in order to protect Lily's son.
In spite of his vindictive demeanour, Severus Snape was an immensely brave man who possessed a deep capacity for love. Everything that he did in the latter part of his life was motivated by his devotion to Lily Evans, whom he loved unconditionally. He was one of Dumbledore's most reliable allies and in his role as a double agent, took great personal risk in ensuring Harry's safety from Lord Voldemort. Despite his years of him and Harry barely getting along, if at all, Snape openly criticised Dumbledore after learning he protected Harry all these years just so he could die at the right time due to being a Horcrux, showing he's grown to genuinely care for Harry, even though at first, he only protected him because of his relationship to Lily. When he informed Dumbledore that he informed Voldemort of the prophecy, Snape begged Dumbledore to hide Harry, Lily, and even James too. This clearly showed Snape prioritized Lily's happiness above all else, even if it meant her being with a man he hated for most of his life.
Despite Snape's normally calm and controlled exterior and guarded body language, he was in possession of an extraordinarily explosive and almost psychotic temper. This was rarely seen, but extreme display of rage was most prominently witnessed after Snape killed Dumbledore and was confronted outside of Hagrid's burning house near the edge of the school grounds. The event that triggered this unhinged manifestation of Snape's unrestrained wrath was Harry's accusation of Snape being a coward for killing Dumbledore. Due to the many years of being bullied by Harry's father, and with a need to both vent his immense stress and maintain his cover, Snape unleashed a terrifying mix of both his emotions and magic, taking great pleasure in torturing and punishing the son of his enemy. Unlike in the past where he spoke quietly in his anger, Snape in this instance was screaming and letting so much out, and confessing his identity of the Half-Blood Prince to Harry who had attempted to use one of Snape's own invented spells against him. This battle showed Snape's repressed rage in its horrific glory and power. Suffice it to say, Severus Snape was not a man who it was wise to provoke, lest one incur his almost elemental wrath and magical power.
Magical abilities and skills
Severus Snape was an extremely powerful and very knowledgeable wizard, showing proficient talent in many different areas of magic — he had an encyclopaedic knowledge and proficiency in potions, was incredibly talented in Legilimency and the only Death Eater capable of producing a Patronus Charm.
- Flying: Severus was capable of unsupported flight. The only other known wizard that was able to do this was Lord Voldemort himself (who is likely to have passed down this skill to Snape personally). In 1997, he used this skill to escape from Hogwarts after his duel with Minerva McGonagall.
- Love: Severus was one of the only people in Voldemort's inner circle who was capable of feeling unconditional love. He fell in love with Lily Evans as a child and maintained his devotion until his death. Despite their differences in beliefs about many things, Severus felt nothing but absolute love for Lily even though she never extended her reciprocity beyond friendship. Snape was devastated by Lily's death and spent seventeen years in constant danger in order to protect Lily's son and ensure that her sacrifice was not in vain. Indeed, Snape's Patronus was a doe, just like Lily's, showing that his love for her was far stronger than his loyalty to Lord Voldemort. Snape was the only Death Eater who was able to cast a Patronus.
- Dark Arts: Severus had a passion for the Dark Arts from a young age, and was especially talented with curses, or so some believed. According to Sirius Black, Snape was "up to his eyeballs in the Dark Arts" when he was at school. However, they had an age old rivalry which could have influenced Sirius's words. During his schooldays, he invented numerous spells, mostly curses, hexes, and jinxes. It is unknown if he was aware of the existence of Horcruxes or Voldemort's employment of them as he never mentions them.
- Potioneer: Severus was extremely adept at potion-making and worked as the Potions Master at Hogwarts for about 15 years. His prowess at potion-making extended beyond simple execution from recipes. When he was still only a student, he would alter official instructions with his own variations, which usually resulted in quicker and more efficient results. He was capable of brewing highly complicated potions such as Veritaserum and the Wolfsbane Potion. Snape was also able to identify Polyjuice Potion by smell and produce fake Veritaserum that seemed real enough to fool Dolores Umbridge (though Umbridge was not portrayed as being particularly intelligent with practicality). In addition, Snape used an unidentified golden potion to help slow a curse cast by Voldemort on Dumbledore. It is unknown if Snape brewed it at a moments notice or had some waiting for such an occasion but it is very likely he brewed it himself. It is unknown if Snape was the student whom Slughorn once said won a bottle of Felix Felicis because Snape never seemed to have any instances of good fortune. Although, given the situations in which good luck would help that Snape faced in his later years, and his abilities, he may have brewed the potion himself if he ever felt it would prove useful.
- Defence Against The Dark Arts: Though Snape had a zest for dark magic, he possessed unexcelled if not unprecedented know-how of how to protect from it. His encyclopedic understanding of the dark arts may have contributed to this. Snape describes the subject as being "of utmost importance" and taught the class at O.W.L and N.E.W.T level to such an effect that even Harry Potter could not help but be enchanted but his knowledge. Snape effectively "assisted" the 1992 duelling club, and understood the essentialness of students handling pragmatism as well as theory in the subject. Snape's DATDA abilities were so great, he was able to save Dumbledore (temporarily) with wand enhanced incantations and a potion simultaneously from a "curse of extraordinary power" cast by Lord Voldemort himself. Snape had also developed effective counter curses for his own dark spells, such as the magic he used to heal Draco from the effects of Sectumsempra'.
- Occlumency and Legilimency: Snape's unerring ability to conceal his thoughts and feelings from external penetration proved to be crucial for him. For seventeen years, he managed to hide facts from Lord Voldemort such as his remorse for Lily Evans's death and his secret alliance with Albus Dumbledore; it was his mastery of hiding his mind that made both sides distrust him. Snape was also skilled at Legilimency; Harry Potter often felt as if Snape had the ability to read minds even before learning what the art was. Snape used Legilimency on Harry constantly while attempting to teach him Occlumency in their private lessons. Since Voldemort was considered history's greatest legilimens and was unable to ever read Snape's mind, despite being in the same room with him on many occasions, Snape could be history's greatest occlumens. Considering how Voldemort would have detected Snape resisting penetration, Snape likely used a different branch of occlumency to allow Voldemort to read what were actually faux thoughts with the latter being none-the-wiser. In addition, Snape may have been such a good actor, Voldemort may simply have never felt a reason to use legilimency against him.
- Transfiguration: Severus was skilled in Transfiguration, being able to conjure objects and animals, and Transfigure elements into other objects with apparent ease. He could also vanish objects as seen when he vanished Harry Potter's Draught of Peace potion in 1995
- Charms: Snape could use charms without fail, such as levitation, disarming, shields, vanish potions, the incredibly difficult Patronus Charm, and he was able to write instructions on a blackboard with a single flick of his wand.
- Duelling: Although he rarely appeared in any known duels Snape was shown to be a very capable duellist. He was able to block the spells being fired at him by the extremely powerful witch Minerva McGonagall (who was capable of duelling Voldemort along with Kingsley and Slughorn) during their brief duel, though was forced to flee by the arrival of the other Heads of House. Considering that Snape had no intention of hurting his opponents in this match, despite being outnumbered and facing opponents who were likely fighting to kill, his abilities were showcased greatly here. He assisted in a duelling club in 1992 with Gilderoy Lockhart, defeating him with a single spell, though, as Lockhart was an unskilled wizard, this was not such a great achievement. Snape also easily blocked all of Harry Potter's hexes during his escape from the Battle of the Astronomy Tower, using Legilimency to read Harry's attempted moves and countered them all before they could be cast. Severus participated in the Battle of the Seven Potters, joining the Death Eaters's side (though secretly attempted to protect the Order). Contrary to the vicious duelling styles of other Death Eaters, Snape preferred using defensive spells and only used aggressive magic when facing a weak opponent, such as Lockhart, or when his foe grew frustrated and started making mistakes. Snape was never known to battle a Death Eater or ally to Voldemort (which would've blown his cover) but no Death Eater ever dared raise a wand against him, indicating they must have seen him display remarkable duelling skills.
- Spell creation: As a student at Hogwarts, Severus was very inventive with new spells. Some of the spells he created were Sectumsempra, healing spell Vulnera Sanentur, Langlock, Muffliato, the non-verbal Levicorpus and its counter-curse, Liberacorpus. The last two somehow became common knowledge around the school. It is unknown what thoughts and techniques Snape put into his creations.
- Non-verbal and wandless magic: Snape was skilled at using non-verbal spells, from the most basic uses (such as instruction-writing on blackboards and cleanups) to the most advanced (such as combat curses). Snape was also skilled at performing wandless magic, such as rope conjuring, counter-jinxing and memory extraction. (Although memory extraction does not require explicitly the use of a wand, relying instead on direct eye contact, conjuring and counter-jinxing are more often depicted to take place with the help of a wand.)
- Logical thinking: Snape's logic and deductive reasoning skills were such that he helped protect the Philosopher's Stone by creating an obstacle, which was based on logic rather than magical skill. According to Hermione Granger many powerful wizards have a blind spot in regards to logic.
- Flying/Quidditch: As well as being capable of unsupported flight in his later days, Snape was at least an able flier on a broomstick, and sure enough in the rules of Quidditch to take over the position of referee at least once. However, in one of Snape's memories, Lily was laughing as he attempted to mount a bucking broomstick, so perhaps he wasn't always a good flier. He likely tried to acquire this skill in his youth in an attempt to impress Lily and to out-do his rival, James Potter.
- Poetry: A skill that Snape possessed but did not make very much mention or display of, Snape was capable of fluidly crafting his words in a way that could often befuddle the reader. His only known composition was the logic puzzle that he used as part of his defences of the Philosopher's Stone. Since this poem showed Snape's logical thinking, it was obviously one of his own creation. Snape's other possible works, if they exists, remain unknown.
Snape never regarded the place where he grew up as a home. Rather like Voldemort and Harry, Hogwarts was his real home. It is likely that he suffered neglect as a child. His parents seem to have had a dysfunctional, even abusive relationship. This troubled, lonely childhood is strongly suggested to have accounted for his severe demeanour, depression, sadness, bitterness, and bouts of rage, as seen later in his life.
Despite having a father who disliked the wizarding community, Snape was quite skilled with magic before he even received his Hogwarts letter. Sirius Black would later remark that, when they first arrived at school, Snape knew more curses than many of the seventh-year students. It does seem that he had a slightly better relationship with his witch mother. During his school years, he nicknamed himself the "Half Blood Prince". In addition, it is quite likely Eileen gave her son most, if not all of his school things. His sixth-year Potions book was, according to Harry, at least fifty years old.
Since at least 1996, Snape was staying in his family's home during the summers between school years. It is unknown what happened to his parents. As he was only thirty-six years old in 1996, his parents may well have been alive, but moved away and left the house to him. His salary as a Hogwarts professor probably made it possible for him to afford other lodging during summers, but his childhood memories of Lily may have stopped him from abandoning the house.
- —Snape whispers his last words to Harry, moments before his death[src]
Snape's friendship with Lily Evans was probably the only thing that truly brought joy to his life. He first met Lily at a very young age, recognising her as a witch one day as she and her sister Petunia played in the park near his house; she had flown off the swings and made a flower grow from a sprout. Longing to escape his humiliating home life, Snape immediately sought to make her his friend. Despite the fact that Lily came from a Muggle family, he never truly saw her as being one of them because he was so smitten with her. They spend time talking about magic and the wizarding world. Lily even asked if being Muggle-born matter in the Wizarding world, which Snape responded that it did not matter at all. In 1971, the two of them were accepted into Hogwarts School of Witchcraft and Wizardry and continued a close friendship up until around their fifth year, despite being Sorted into different houses. Snape was very disappointed that they were not in the same house and forlorn because of it.
During this time, Snape began hanging out with people who embraced Dark Magic and pure-blood supremacy, which put a huge strain on their friendship. Lily was offended by many of the views that Snape was beginning to adopt and disliked the qualities that his new classmates were bringing out in him. Given time over again, Snape would never have done many of the things he did, but at the time he did not truly understand her aversion. He was so insecure and blinded by his attraction to the Dark side that he imagined she would find it impressive if he became a real Death Eater. Ironically, Lily might have grown to love Snape romantically (she certainly loved him as a friend) if he had not loved Dark Magic so much, and been drawn to such loathsome people and acts. When Snape called Lily a "Mudblood" in a moment of humiliation, it was the last straw for Lily. When she later asked him if he still intended to become a Death Eater and he did not deny it, she severed all ties with him, despite Snape's profuse apologies.
When Snape overheard the Prophecy, he immediately relayed its contents to the Dark Lord, not knowing that it would have anything to do with Lily. Upon discovering that Lord Voldemort was planning on targeting the Potter family, Snape pleaded with him to spare Lily in exchange for her husband and son. He later appealed to Albus Dumbledore, asking him to do everything in his power to protect Lily and the rest of her family, if he had to.
Snape was devastated by Lily's death, sinking into a suicidal depression that seemingly lasted the rest of his life. But at Dumbledore's behest, he became committed to protecting her son Harry and assisting him in defeating the Dark Lord. Snape never spoke of Lily to anyone again, except Dumbledore. This was likely due to heartbreak and worry that mention of her might make others suspicious. Even though he constantly slandered James to Lily's son's face, he alienated Lily from these attacks entirely, possibly due to his inability to ever insult her again. Indeed, Snape's Patronus was a doe, just like Lily's, because he loved her throughout his entire life. As Snape died, he asked Harry to look into his eyes; his last wish in his final moments was to die looking into the same green eyes that reminded him so much of Lily.
- Snape: "You and Black, you're two of a kind, sentimental children forever whining about how bitterly unfair your lives have been. Well, it may have escaped your notice, but life isn't fair. Your blessed father knew that; in fact he frequently saw to it!"
- Harry Potter: "My father was a great man!"
- Snape: "Your father was a swine!"
- — Exchange between Harry and Snape during an occlumency lesson[src]
The Marauders were a group of four Gryffindor boys, with whom Snape began a relationship of enmity and hate throughout their school years. The group consisted of Remus Lupin, Peter Pettigrew, Sirius Black, and James Potter. Snape and the latter two detested each other almost instantly upon meeting for the first time in a compartment on the Hogwarts Express.
Throughout their times at Hogwarts, James and his friends (except for Lupin) bullied Snape ceaselessly, Pettigrew only did it though because James and Sirius did it. Lupin did not encourage the harassment, but he did not try to stop them, either. Snape, in turn, never lost an opportunity to get one up on them whenever possible. However, James Potter ended up saving his life when Sirius told Snape how to get into the Shrieking Shack, which he deeply regreted later on and was punished deeply. Snape caught a glimpse of Lupin transforming into a werewolf before James pulled him back through the tunnel. Snape did not think James was acting nobly. Rather, he saw it as being more of a self-serving act in order to avoid him and the rest of the maruders being expelled from Hogwarts, and the incident only made him resent James more than ever. He also came to resent Lupin, believing that he had been in on Sirius's prank.
- Remus Lupin: "Well, Snape was a special case. I mean, he never lost an opportunity to curse James so you couldn't really expect James to take that lying down, could you?"
- Harry Potter: "And my mum was OK with that?"
- Sirius Black: "She didn't know too much about it, to tell you the truth, I mean, James didn't take Snape on dates with her and jinx him in front of her, did he?"
- — Lupin, Harry, and Sirius Black discussing Snape's interactions with Harry's parents during their seventh year[src]
During their seventh year at Hogwarts, Lily and James began dating, which probably fuelled Snape's hatred of him even more. James always suspected that Snape had deeper feelings for Lily, which factored strongly into his behaviour towards him. Snape's continued bitterness toward the Marauders even into adulthood became apparent in 1993, when Remus Lupin was given the position of Defence Against the Dark Arts professor at Hogwarts, despite Snape and Dumbledore both knowing that he was a werewolf.
During the time that Harry Potter attended the school, Snape delighted in comparing Harry to his father and telling him that he was not the great man he liked to believe he was. Although Snape's descriptions of James' teenage self were accurate, Snape purposefully omitted even vague descriptions of the noble person James became. Snape mostly felt bitterness and resentment towards Remus Lupin, and took to dropping hints about his being a werewolf in the hopes that the students would catch on. However, it should be noted that, despite Snape's strained relationship with the Marauders, he dutifully concocted potions for Remus Lupin during his tenure at Hogwarts and attempted to save his life during the Flight From Little Whinging. Lupin was the only one of the Marauders who could interact with Snape at least on a perfunctory level when they were adults. Lupin, like everyone, believed Snape an evil, cowardly servant of Voldemort's after the formers murder of Albus Dumbledore and died before learning the truth.
Snape held an especially strong enmity towards Sirius. Not only did Snape despise Sirius because of the latter's prank on him at Hogwarts, but he also believed Sirius to have betrayed Lily to Voldemort. He was eager to be the one to hand Sirius over to the receive the Dementor's Kiss after he broke out of Azkaban and was furious when he managed to escape yet again. After Sirius's innocence was proven, however, Dumbledore insisted that the two of them shake hands and ally together against Lord Voldemort. Though Sirius felt regret over his malicious treatment of Snape in school, the two were barely capable of having a civil conversation. During the period that Sirius was hiding from the Ministry of Magic, Snape took to taunting him about how he was useless to the Order while confined to his mother's house. However, after learning of Sirius's innocence, Snape accepted that they were fighting for the same side, albeit begrudgingly, and when Harry told Snape that he thought Voldemort had captured Sirius, Snape quickly ran to check if Sirius was in fact safe.
Snape treated Pettigrew, the man who truly betrayed Lily, with nothing but contempt. It is possible that Snape regarded Pettigrew as being too negligible of a person to hate, however he was also likely forced to keep his dislike to a bare minimum due to his role as a double-agent. When the Dark Lord later assigned Pettigrew to work as his assistant, Snape took to treating him like a maid, forcing him to clean his house and serve food to his guests and making sure that he wasn't a least bit comfortable and was of course not happy. Snape also seemed to enjoy threatening Pettigrew with telling Voldemort that he desired more dangerous assignments whenever he would protest his position as Snape's servant.
- Snape: "Mediocre, arrogant as his father, a determined rule-breaker, delighted to find himself famous, attention-seeking and impertinent..."
- Albus Dumbledore: "You see what you expect to see, Severus. Other teachers have reported that he is modest, likeable, and reasonably talented. Personally, I find him an engaging child."
- Snape: "He is his father all over again."
- — Snape and Dumbledore differ in their assessments of Harry in 1991[src]
From the day Harry set foot in Hogwarts, he and Snape loathed each other. Despite the fact that Snape was committed to honouring Lily's sacrifice, he could not bring himself to judge the boy objectively because of the connection to James Potter, who bullied him in his school days. Indeed, Snape was filled with nothing but contempt and bitterness towards Harry, who simultaneously reminded him of both Lily and James. Harry served as living proof of the fact that Lily had given her love to someone else, and Snape wasted no time in comparing him continually with his father.
During Harry's time at Hogwarts, Snape treated Harry viciously, both in class and out. He frequently derided the boy's abilities, bullied him in class, and punished him whenever possible. He was also resentful and even somewhat envious of Harry's popularity, which he also equated with Harry's father. Although Snape threatened to have Harry expelled more than once, he never attempted to follow through — presumably because it would have led to Harry losing the protection surrounding him. However, never did he forget that Harry was also Lily's child, and much beyond bureaucratic rules, this led him to put the boy's safety in the most critical situation. When he learned that Dumbledore had intended for Harry to die all along, Severus remained horrified, seeing it as a calculated betrayal to Lily's memory.
When Harry helped Sirius Black escape, their relationship went under further strain, since Snape believed at that time that Sirius betrayed Lily to Voldemort whereas Harry had learned of his innocence, although Snape continued to put Harry's safety first. During the brief period in which Snape gave private Occlumency lessons, Snape relished in forcing Harry to relive his worst memories. During the early years, Harry associated Snape with his abusive and bullying ways but when Sirius died, Harry took savage pleasure in blaming Snape for having taunted Sirius about being useless, causing him to leave his hiding place and join the battle. Though Snape came to the aid of the Order as swiftly as possible, Harry blamed Snape mainly to ease his own guilty conscience about the entire incident. However, this was nothing in comparison to the retroactive rage Harry felt upon finding out that Snape was the one who relayed the Prophecy to Lord Voldemort, causing him to hunt down Harry and his family. When he later murdered Dumbledore, the hatred between them was sealed almost as personally as between Harry and Voldemort.
Only once did Snape ever truly see Harry as Lily's son, and that was in the moments right before he died. Following this, Harry was given access to all of Snape's concealed memories, which brought the former teacher's true intentions and more human side to light. When Harry discovered the love Snape had for his mother and the constant danger he put himself in to ensure his safety, his opinion of him changed completely.
By adulthood, all of Harry's hatred of Snape seems to have vanished and looks as though he had never harboured it at all. This can be seen through his request that a portrait of Snape be hung in the Headmaster's office at Hogwarts, which was not done immediately after Snape's death since he had abandoned his post. Furthermore, Harry gave his youngest son the name "Albus Severus", and told him that his Slytherin namesake was "the bravest man I ever knew."
Another aspect of Snape's highly visible, almost cartoonish mistreatment of Harry is that he knew all his actions might one day be reported to Voldemort by Death Eater spies. He did nothing that would create the image of real sympathy or loyalty to Potter or any of Voldemort's former adversaries, only curt professionalism towards his colleagues, obedience but not true loyalty to Dumbledore, and utter hatred for Harry. His need to behave this way was redoubled when it became clear Voldemort could use legilimency to read Harry's mind, and in doing so view any action by Snape in view of Harry.
Ironically, the two shared many similarities that neither of them were aware of. Both were half-blood wizards who grew up among Muggles. Both of their Muggle caretakers were cruel to them (Snape's father was implied to be abusive to Snape and his mother, while the Dursleys were neglectful towards Harry). Both Snape and Harry's childhoods involved Petunia Evans (Snape was friends with Petunia's sister Lily, while Harry was Petunia's nephew). Both grew up wearing secondhand clothes (however, Snape was likely forced to wear them due to his family's poverty, Harry's relatives were simply reluctant to afford any major expenses on him). In addition, the two grew up virtually friendless until attending Hogwarts (Snape due to his unstable family life and secondhand clothes, Harry due to his relatives isolating him). Upon entering Hogwarts, Snape and Harry were bullied mercilessly, in Snape's case, by the Marauders (who were led by James Potter), and Harry by (ironically) Snape himself, Draco Malfoy, among others. Furthermore, both had at least one near-death experience during their Hogwarts: Snape was nearly killed in an abortive prank by the Marauders, while Harry repeatedly had Voldemort attempting to kill him. However, both Snape and Harry had at least one silver gleaming: their genuinely intense and close romantic attraction to a redheaded teenager (Lily Evans and Ginny Weasley, respectively). Of course, while Snape did not marry Lily (who had married James and mothered Harry), Harry himself did marry Ginny (with whom he had a son named Albus Severus).
In the second alternate timeline created by Scorpius Malfoy and Albus Potter, Scorpius revealed to Snape the predicament he had caused among other things. It is founded that Snape was extremely saddened and disappointed in his failure to protect Harry from Voldemort in the final battle, also was engaged to assisting Scorpius to fix the timeline so Harry was alive and Voldemort defeated. One of the details he revealed after convincing Snape of his tale was that in his timeline that Harry had named his second son after him. This deeply touched Severus, who later told Scorpius to convey to Albus in the original timeline that he is proud that the boy carries his name and legacy, feeling apart of a time he will never experience for the greater good of the world. He died without hesitation for the better world that Scorpius sought to restore, knowing his purpose could finally be served. Snape once again died for the legacy of his love, showing the kind of man he was at heart.
Ron Weasley and Hermione Granger
- Snape: "That is the second time you have spoken out of turn, Miss Granger... Five more points from Gryffindor for being an insufferable know-it-all."
- Ron Weasley: "You asked us a question and she knows the answer! Why ask if you don't want to be told?"
- Snape: "Detention, Weasley... and if I ever hear you criticise the way I teach a class again, you will be very sorry indeed."
- — A typical interaction in Snape's classroom[src]
Snape criticised Ron Weasley and Hermione Granger whenever possible, most likely because of the fact that they were friends of Harry as well as being Gryffindors. Although Snape seldom found anything wrong with Hermione's work, he never awarded her house points and sometimes accused her of being an "insufferable know-it-all". Despite this, Snape saved their lives in 1993 when Professor Lupin had transformed into a werewolf at the full moon, and even after they had stopped being his students, continued to assist the three of them in their quest to destroy the seven Horcruxes (without them being any the wiser, of course). It is unknown how Ron and Hermione reacted to the revelation of Snape's loyalty though as Harry recounted Snape's memories they were described as shocked. There's also no mention of them protesting Harry and Ginny naming their (Ron & Hermione) nephew after Snape, which might indicate they came to forgive and admire him.
- Albus Dumbledore: "I prefer not to put all my secrets in one basket, particularly not a basket that spends so much time dangling on the arm of Lord Voldemort."
- Snape: "Which I do on your orders!"
- Albus Dumbledore: "And you do it extremely well. Do not think that I underestimate the constant danger in which you place yourself, Severus. To give Voldemort what appears to be valuable information while withholding the essentials is a job I would entrust to nobody but you."
- — Dumbledore and Snape on the latter's espionage[src]
Snape's relationship with Dumbledore was one of close, but not indefinite trust. Dumbledore was Snape's headmaster whilst at Hogwarts and was presumably impressed with Snape's academia and abilities. Snape likely felt no real loyalty to Dumbledore as a student and may have resented the latter's failure for stopping the torturous bullying Snape received at the hands of the Marauders. Despite this, he agreed to keep Remus Lupin's lycanthropy a secret when the headmaster ordered him (though likely out of self-serving reasons). Before allying himself with Snape, Dumbledore viewed him with, in his own words, disgust, for the latter's selfishness.
After having accidentally put Lily's life in jeopardy by delivering a prophecy to Lord Voldemort (without knowing at the time that it was referring to her son), Snape turned to Dumbledore to keep her safe. Dumbledore chose to capitalise on Snape's remorse and initiated him into the Order of the Phoenix as a double agent. He also gave Snape the job of Potions Master an head of Slytherin at Hogwarts at the tender age of 21.
As a spy for the Order, Snape silently kept his place within the ranks of the Death Eaters, while informing Dumbledore about their movements. He also adopted the role of secret agent for Voldemort, and supplied him with strategic scraps of information about the Order. The content of these reports was often dictated by Dumbledore. It is implied that Snape withheld little, if any, information from Dumbledore that was relevant to the Order's success, while Snape deliberately did the opposite for Voldemort.
Snape resented Dumbledore's secrecy and was offended by this perceived lack of faith in his abilities. However, when Snape discovered that Dumbledore had intended for Harry to die all along, he was horrified, seeing it as a calculated betrayal of Lily's memory. Dumbledore clearly underestimated the depth of Snape's feelings, and, years later, was very surprised to learn that he still maintained his devotion.
In 1996, Dumbledore became aware of Voldemort's plan to kill him. Knowing Voldemort expected Draco Malfoy to fail, and assuming Snape to be Draco's successor, Dumbledore assigned Snape the task of killing him when the situation arose. Despite Snape's numerous attempts to persuade Dumbledore otherwise, he did complete his assignment. Dumbledore also entrusted Snape with protecting the students once Hogwarts fell into Voldemort's control.
In spite of their mutual trust in each other, Dumbledore never allowed Snape his coveted position as Defence Against the Dark Arts teacher. It was claimed that he did it so that Snape wouldn't experience a resurgence of "old habits". The truth may in fact be that Dumbledore believed the post to the jinxed by Lord Voldemort after he failed to attain the post, and this jinx had prevented any teacher from lasting beyond a year. To place Snape in such a position might have risked his safety, and Dumbledore would not have permitted such a risk, in case he required Snape's aid against Voldemort again. When Dumbledore was infected by the curse on Marvolo Gaunt's ring, he asked Snape to kill him. Knowing that such an act would vilify Snape beyond any doubt in the mind of the Wizarding public, Dumbledore allowed Snape the position because he would have to leave immediately anyway.
Snape first met Petunia Evans during their childhood. She was the sister of Lily Evans, but Petunia was a Muggle, unlike her sister. Snape and Petunia strongly disliked each other, from the first moment they met. Petunia, who was contemptuous of anything out of the ordinary, viewed him with disdain because of his poor economic status and because he was such an oddball. Snape, on the other hand, regarded her balefully because she was a Muggle, and because she made disparaging comments about his clothes. It's possible that she helped fuel his dislike towards Muggles in general.
- Harry Potter: "Severus Snape wasn't yours. Snape was Dumbledore's. Dumbledore's from the moment you starting hunting down my mother. And you never realised it, because of the thing you can't understand ... he loved her for nearly all of his life. "
- Lord Voldemort: "It matters not! It matters not whether Snape was mine or Dumbledore's, or what petty obstacles they tried to put in my path! I crushed them as I crushed your mother, Snape's supposed great love!"
- — Lord Voldemort on Snape's duplicity[src]
In his days as a Death Eater, Snape was one of Lord Voldemort's most trusted and devoted servants. In 1980, Snape overheard part of a prophecy foretelling Voldemort's downfall. After being caught, Snape hurried to tell Voldemort what he had heard, unaware that his information was incomplete. However, he turned against the Dark Lord the moment he decided to target Lily Potter.
When Voldemort returned to physical form in 1995, Snape ostensibly returned to him as a spy for the Order. Using Occlumency, Snape was able to close his mind, hide his true allegiance and maintain his cover as a faithful Death Eater. Snape was one of the only Death Eaters to have the Dark Lord's complete trust and, after he murdered Albus Dumbledore, he became Voldemort's most trusted adviser. He was held in such high regard that Voldemort accepted making him Headmaster of Hogwarts after seizing power.
However, Voldemort coldly had his snake, Nagini, kill Snape in 1998, believing it would make him the true master of the Elder Wand. Although he claimed he regretted its necessity, he felt no remorse over murdering one of his most faithful advisors. After Snape's death, Harry Potter revealed to Voldemort that Snape had managed to deceive him for years because he acted entirely out of love for Lily Evans — something Voldemort neither understood or cared about. Indeed, at the time Snape asked Voldemort to spare Lily's life, he erroneously believed that Snape's interest in her was merely physical, and callously stated that there were other women "of purer blood, worthier of him" after her death.
It is possible that part of the reason Voldemort put so much trust in Snape was because he identified with his background. Both were the only children of Muggle fathers and pure-blood mothers (Voldemort: Tom Riddle Snr and Merope Gaunt; Snape: Tobias Snape and Eileen Prince). Both Muggle men had nothing but hatred for their sons and wives and neglected their sons and yearned to shed their unhappy beginnings. Voldemort's father had abandoned his wife when she was pregnant with their son, while Snape's father was abusive towards his wife and their young son. Both Riddle and Snape claimed greater identification with their maternal lineage than their paternal ancestry —the Gaunts and Prince family, respectively. Both men grew up in poverty — Voldemort grew up in an orphanage, while Snape lived in Spinner's End. In addition, both Riddle and Snape were Sorted into Slytherin, and were known for their intelligence. Both men had a passion for the Dark Arts and blood purity as childhood, and bestowed grandiose titles onto themselves (Riddle was known as Lord Voldemort, while Snape adopted the name the Half-Blood Prince). Both saw Hogwarts as sort of a real home as opposed to their default home. In addition, both men kept a book related to the Dark Arts in their sixteenth years — Voldemort had the diary that he converted into a Horcrux, while Snape had a Potions textbook that he used to write original magic. Voldemort may have seen him as a trusted Death Eater who shared the same hatred for his father as he had for his own. The only thing that differs between Voldemort and Snape's relationships with their fathers is murder; Voldemort had murdered his own father while Snape did not murder his. Voldemort must have also recognised Snape as a powerful and intelligent wizard, traits which would manifest as usefulness to his ideology.
However, there were other differences between Snape and Voldemort. Snape had a secret love for Lily Evans for most of his life, which motivated him to defect from the Death Eaters and protect her son after her death at Voldemort's hands. Voldemort, on the other hand, disregarded love as a weakness that was beyond his comprehension, and had allegiance to only himself. This had coincidentally led to his own undoing. In addition, unlike Voldemort, Snape had known about the existence of the wizarding world before he was eleven years old (likely due to the fact that Snape's mother was actually present in his childhood).
Snape possessed the ability of independent flight, which was presumably taught to him by Lord Voldemort as he displayed the same ability during the Battle of the Seven Potters. This shows that Lord Voldemort had a great deal of trust in Snape as he taught him a very unique ability, something he might not have done with any other Death Eater.
Snape appeared to be on good terms with the Malfoy family. Lucius Malfoy was a Slytherin prefect when Snape began attending Hogwarts, and the two ran in the same social circles, which included other future Death Eaters. Lucius continued to think and speak well of Snape later in life. Perhaps because of this, Snape also favoured Lucius's son Draco. Draco seemed to look up to Snape, once sycophantically saying that he would make a far better Headmaster than Albus Dumbledore.
However, after his father's imprisonment in Azkaban following the Battle of the Department of Mysteries, Draco came to resent and mistrust Snape, suspecting that he was trying to usurp his father's place in the Death Eater ranks. He refused Snape's repeated offers of help with the task Lord Voldemort assigned him in his sixth year. Narcissa Malfoy, on the other hand, begged Snape to assist Draco in his task to assassinate Dumbledore, fearing that her son was being set up to fail. She ignored the warnings of her sister, Bellatrix Lestrange, who did not trust Snape, and had him make an Unbreakable Vow to help Draco and take over the task should he fail. This speaks highly as to the trust and respect the Malfoys had for Snape.
- "I don't trust you, Snape, as you very well know!"
- —Bellatrix Lestrange's distrust of Snape[src]
Unlike her Malfoy relatives, Bellatrix Lestrange invested none of her faith in Snape. It's possible that the two got along better during the First Wizarding War as Sirius once described the two as old acquaintances, however later in life she showed nothing but distrust toward him. She saw right through his triple agent charade, even though Lord Voldemort could not. Part of the reason for this may have been Snape's half-blood status and his avoidance of imprisonment in Azkaban, while she was incarcerated there for years. Given Bellatrix's obsessive, slavish love for Voldemort, she may have envied the trust the Dark Lord put in Snape, whom she considered her inferior in both blood and service. She was suspicious when Snape did not immediately return to Voldemort after his rebirth, and why he never took an opportunity to kill Harry Potter when, as one of the boy's professors, he had easy access to him. When Snape easily backhanded all of her accusations, Bellatrix was lost for words. With her logical reasons for distrusting Snape were gone, her irrational jealousy was all she had left to give her a reason to hate him. For that reason it perhaps grew stronger. Bellatrix was uneasy speaking openly about things around Snape, and tried to discourage her younger sister from asking him for help with Draco's task. Although Bellatrix did not fear or respect Snape like most others did, she seemed to only avoid his bad side to avoid Voldemort's bad side by extention.
Snape, on the other hand, seemed to regard Bellatrix coolly. He had very little patience for her dramatics and tendency towards hysteria. He even took the opportunity to mock her for her struggle against the six teenagers from Dumbledore's Army during the Battle of the Department of Mysteries, and that she was losing her status in Voldemort's eyes. Snape and Bellatrix were Voldemort's most powerful and trusted servants (or so Voldemort thought as far as Snape was concerned) and as such they never picked a real fight with one another. They were also the Death Eaters that the Order of the Phoenix and its associates hated the most and the ones the other Death Eaters feared and respected the most. Bellatrix never managed to convince anyone of Snape's true loyalty and died moments before it was revealed to everyone that she had been right all along.
- Snape: "...don't see what there is to fuss about, Igor."
- Igor Karkaroff: "Severus, you cannot pretend this isn't happening! It's been getting clearer and clearer for months, I am becoming seriously concerned, I can't deny it—"
- Snape: "Then flee. Flee, I will make your excuses. I, however, am remaining at Hogwarts."
- — Snape and Karkaroff speaking in private during the Yule Ball[src]
Snape and Karkaroff had a little bit of history with each other from the First Wizarding War. Karkaroff was captured by Alastor Moody and during his trial, in a desperate attempt to avoid going to prison he gave to the Ministry many names of Death Eaters, including Snape. However, at the time he was not aware that Snape was a double agent. He desperately tried to convince the court that Snape remained guilty despite the judge telling him Snape was cleared.
During the Triwizard Tournament, when Karkaroff's and Snape's Dark Marks were burning stronger, Karkaroff told his worries to Snape, who expressed little concern to him. As the year progressed, Karkaroff continued to pursue Snape over the issue, to which Snape became increasingly annoyed, and even started to evade him. Snape described Karkaroff as cowardly and had no intention of joining him in hiding once Voldemort returned. Karkaroff's death did not seem to surprise Snape.
- "'[...] you and your precious little Death Eater friends — you see, you don’t even deny it! You don’t even deny that’s what you’re all aiming to be! You can’t wait to join You-Know-Who, can you?"
- —Lily Evans on the day she and Snape had their falling out[src]
Severus became a member of the Death Eaters after Hogwarts. During his time at school, he was member of a "gang of Slytherins that would later become Death Eaters". This gang included Rodolphus Lestrange, Avery, Mulciber, Evan Rosier and Wilkes. Lily Evans could not understand how he could be friends with them, as they had an "evil sense of humour". It's unknown how close he really was with the members of this gang, however he did seem somewhat defensive when Lily spoke ill of Mulciber and Avery implying a possible level of intimacy with them at least. Rosier and Wilkes were killed by Aurors after the First Wizarding War; Rodolphus and Mulciber were captured (but later escaped), while Avery managed to defect.
Other Death Eaters Snape knew were Amycus and Alecto Carrow, two siblings. Amycus and Alecto were Deputy Headmasters at Hogwarts, at the time Snape was Headmaster. They were both sadistic, and they liked to torture the students who opposed them. They also ordered the students to practise the Cruciatus Curse on punished students. Death Eater Yaxley appeared to be friendly with Snape too however he seemed resentful when Voldemort valued Snape's information and accomplishments over his own. Along with Fenrir Greyback, they seemed to fear Snape's abilities, as they instantly stood down when he approached to kill Dumbledore, despite Draco being tasked with the job.
Furthermore, Snape knew the extremely loyal Death Eater Barty Crouch Jr. For many years, it was believed that Barty Crouch was dead. However, he escaped from Azkaban and planned to send Harry Potter to Voldemort, who would be reborn. Snape, along with Dumbledore and McGonagall, saved Harry from Crouch while he was trying to kill Harry. Snape was surprised that Crouch was still alive. Later, the Death Eater was given the Dementor's Kiss and Snape appeared indifferent, if not satisfied, towards this.
Other known Death Eaters were Antonin Dolohov, Augustus Rookwood, Nott, Crabbe, Goyle, Walden Macnair, Jugson, Thorfinn Rowle, Gibbon, Rosier, Avery, Mulciber, Lestrange, Travers, Selwyn, and Rabastan Lestrange. Rodolphus and Rabastan were the only ones who tried to search for Lord Voldemort after the first defeat, along with Bellatrix and Barty Crouch Jr During the Second Wizarding War. All those Death Eaters were either killed or imprisoned after Voldemort's final defeat. Although not shown interacting much with Snape, they all presumably held him in the same respect and fear that Yaxley & Greyback did and, considering Snape's rank, had to answer to him.
It is unknown how the surviving Death Eaters reacted — either as a group or as individuals — to reveal of Snape's demise (if they found out) or the revelations of his true loyalties.
- "Possibly no one's warned you, Lupin, but this class contains Neville Longbottom. I would advise you not to entrust him with anything difficult. Not unless Miss Granger is hissing instructions in his ear."
- —Severus Snape insults Neville in front of the other teachers[src]
Neville Longbottom was perhaps one of the worst Potions students Snape ever taught. As such, Snape was especially cruel to him and often made a point of ridiculing his failures in class. On one occasion, Snape threatened to test Neville's Shrinking Solution on his pet toad, despite the fact that the potion would be poisonous if not brewed correctly. Even outside of his own classroom, Snape did not hesitate from offering harsh opinions of Neville.
This treatment made Neville extremely nervous to be around Snape, and further contributed to his poor performance in Potions. Neville admitted in 1993 that Snape was his greatest fear, and, predictably, Snape was the form Neville's Boggart took at that time.
Soon Snape heard about Neville's boggart and treated him, if possible, even worse than he usually did. However, in 1996, Snape alerted members of the Order of the Phoenix, in order to save Neville, Harry and their friends from Death Eaters. Although Snape helped save Neville's life, he continued to treat him poorly in school. Neville was surprised that Snape killed Dumbledore but did learn the truth later. When Neville killed Nagini, he inadvertently avenged Snape's murder.
Though it is possible that from Sybill Trelawney's first prophecy that it was either Neville or Harry who was to threaten Voldemort, that as a result with Voldemort going for the Potters, that Neville represented his guilt from revealing the prophecy to Voldemort and the potential alternative for what could've happened. As a result as for Snape Neville embodied all of this that made him detest and bully him.
Minerva McGonagall was generally on good professional terms with Snape. However, seeing as Snape was the Head of Slytherin House, while McGonagall was the Head of Gryffindor House, there was some antagonism between them, as Snape usually teased McGonagall when Slytherin had more points than Gryffindor. McGonagall was also wary of the fact that Snape was once a Death Eater. However, she trusted him because she knew that Dumbledore trusted him, too. McGonagall, like Snape, was very strict, but much more fair, as noted by Harry Potter. McGonagall was Snape's Transfiguration professor when he was a student and likely admired his brilliance.
Her trust of Snape evaporated after Dumbledore's murder. Furthermore, when Snape became Headmaster of Hogwarts, McGonagall tried to oppose him and the Carrows, without knowing that Snape was trying to protect the students from the Carrows, too. When the war was coming to a head, she personally attacked Snape and violently called him a coward, a trait she, as Head Of Gryffindor, loathed. It is unknown how she reacted when she learned about his true loyalties, but it is likely that she forgave him. She permitted his portrait to be hung in the Headmaster's office, at Harry's request.
- "Snape... we all wondered... but he trusted... always... "
- —Professor McGonagall after Dumbledore's death[src]
Snape was respected professionally among his colleagues at Hogwarts. Though many of them exhibited some wariness towards him due to his status as a former Death Eater, they opted to trust him because Dumbledore did. When Snape killed Dumbledore, however, the entire staff was shocked. In 1998, Flitwick and Sprout, like many other teachers, tried to oppose Snape and the Carrows, and they were among the ones who chased Snape out of Hogwarts before the battle. Flitwick and Sprout were Snape's Charms and Herbology teachers respectively in the latter's youth.
Rubeus Hagrid was no friend of Snape's but trusted him, mainly because Dumbledore trusted him and would always defend him whenever Harry or Ron would express their distrust for him. Both Hagrid and Snape became members of the first and second Order of the Phoenix, and Hagrid, like Flitwick and Sprout, was shocked after Dumbledore's death, though all three learned the truth about Snape's loyalties after the Battle of Hogwarts.
Snape disliked most of the Defence Against the Dark Arts instructors, such as Quirinus Quirrell, Gilderoy Lockhart, Remus Lupin, and Dolores Umbridge. Though this was at least partially out of his own desire to teach the subject, he had legitimate reasons to dislike them, as Quirrell was an agent of Lord Voldemort, Lockhart was a narsiccistic fraud, Lupin had acted as a bystander to, if not directly participating in, much of the bullying Snape faced in his school days, and Umbridge was a corrupt woman who wanted the entire school under her thumb. The only Defence Against the Dark Arts professor Snape refrained from displaying disrespect to was Bartemius Crouch Jr impersonating Alastor Moody, the toughest Dark Wizard hunter the Ministry ever had. Harry surmised this was out of fear, but it was more likely due to allegiance.
Horace Slughorn had been Snape's Potions master and head of house. Snape was made a member of the Slug Club as he was a brilliant student and even then his potion abilities were almost as good if not equal to Slughorn's. Snape might have been the student to whom Slughorn once award a vile of Liquid Luck. It is highly unlikely that Slughorn was aware of Snape's self-altered textbook and was flabbergasted when Snape murdered Dumbledore.
Snape seemed on good terms with Argus Filch, the caretaker, who respected Snape, and like him, disliked most students at Hogwarts. It is unknown how Filch reacted when he learned that Snape killed Dumbledore.
- "You are here to learn the subtle science and exact art of potion-making. As there is little foolish wand-waving here, many of you will hardly believe this is magic. I don't expect you will really understand the beauty of the softly simmering cauldron with its shimmering fumes, the delicate power of liquids that creep through human veins, bewitching the mind, ensnaring the senses... I can teach you how to bottle fame, brew glory, even put a stopper in death — if you aren't as big a bunch of dunderheads as I usually have to teach."
- —Snape talking to the students at his first lesson[src]
Snape was not popular among the majority of the students at Hogwarts. He was quite strict and had high standards. He refused to allow any students into his N.E.W.T.-level Potions classes unless they achieved an "O" grade on their O.W.L. exam for the subject (many other Hogwarts teachers would still accept the next-best grade, "E", for their advanced classes). At the beginning of the 1995-1996 school year, he warned his fifth-year students that he expected everyone to make some sort of passing grade on their O.W.L. exams, even if they were not intending to try for his N.E.W.T. class. Anyone who made a poor grade would deal with his "displeasure".
In addition to being strict, he was not always fair. His having been bullied so much as a child may have fuelled his oppressiveness as a teacher. During Harry Potter's years at the school, Snape particularly enjoyed taking points from Harry's House, Gryffindor. He generally favoured the students in his own House, Slytherin, including Draco Malfoy. However, he was still irritated if they did not live up to his expectations. On at least one occasion, he gave Crabbe and Goyle detention because they had failed their O.W.L. exam for Defence Against the Dark Arts.
Although he disliked most students, he was not truly evil or unconcerned for their safety. In 1993, when Professor McGonagall informed the staff that a student had been captured by the monster from the Chamber of Secrets, Snape displayed a hint of genuine concern by gripping the back of a chair very hard. He also did everything he could to protect the students from Voldemort's control of Hogwarts, while Alecto and Amycus Carrow were appointed at the school.
Order of the Phoenix members
- Fred Weasley: "Git."
- Hermione Granger: "He's on our side now."
- Fred Weasley: "He's still a git."
- — Fred and Hermione about Snape's behaviour towards them[src]
Snape's relationships with some members of the Order of the Phoenix have already been established: Lily Evans, the Marauders, Albus Dumbledore, Harry Potter, Ron Weasley, Hermione Granger and Minerva McGonagall.
Snape was not particularly gracious towards Nymphadora Tonks, probably because she was so close to Remus Lupin. When they met at school in 1996, he maliciously said "I was interested to see your new Patronus. I think you were better off with the old one... the new one looks weak." Snape did, however, respect Tonks' abilities as he would have been her Potions master whilst she was a Hogwarts student and he awarded her an O in her O.W.L. This is evident as he never let one with a lesser grade take the N.E.W.T which was a requirement to be an auror. Tonks was shocked when Snape killed Dumbledore and never learned that Snape was on their side, as she was killed by Bellatrix Lestrange during the Battle of Hogwarts.
Snape had a mixed relationship with the Weasley family. While he disliked their children, he seemed to be on civil terms with Arthur and Molly. However, when he murdered Dumbledore, the Weasley family obviously turned against him. Snape also accidentally cursed off George's ear, during the Battle of the Seven Potters, while he was trying to hit another Death Eater. The Weasley family learned that Snape was on their side in 1998, except Fred, who was killed in the Battle of Hogwarts.
He also did not much care for fellow member of the Order Mundungus Fletcher, who was also a thief. In 1996 he was arrested for impersonating an Inferius. When Seamus Finnigan asked Snape about it, he answered that the "Inferius" was, in fact, a smelly sneak thief named Mundungus Fletcher. It is most likely that Mundungus learned that Snape was on their side after the Second Wizarding War.
It is likely that the members of the Order who survived the Battle of Hogwarts were told by Harry of Snape's true loyalties.
Severus means "stern" in Latin, and is the root of the English word "severe". It was a Roman cognomen, common to members of the Severan dynasty of Emperors, including one notorious for his harsh persecution of the early Christians.
Septimius Severus, also known as Severus, was Roman Emperor from 193 to 211. As a young man he advanced through the customary succession of offices under the reigns of Marcus Aurelius and Commodus. Severus seized power after the death of Emperor Pertinax in 193 during the Year of the Five Emperors. After deposing and killing the incumbent emperor Didius Julianus, Severus fought his rival claimants, the generals Pescennius Niger (possibly Phineas Nigellus Black) and Clodius Albinus (Albus Dumbledore). Niger was defeated in 194 at the Battle of Issus in Cilicia. Later that year Severus waged a short punitive campaign beyond the eastern frontier, annexing the Kingdom of Osroene as a new province. Severus defeated Albinus three years later at the Battle of Lugdunum in Gaul.
J. K. Rowling has said that she took the surname Snape from an English village in Suffolk. There is also a village called "Snape" in Yorkshire, which was rebuilt by the aforementioned emperor, Septimus Severus. Snape is also an English verb meaning "to be hard upon, rebuke, snub", derived from the Old Norse "sneypa", "to outrage, dishonour, disgrace".
Interestingly J.K. Rowling used to live in Clapham Junction at the time of her starting to write the first book. Opposite Clapham Junction station is a road named Severus Road, though it is unknown if this is simply a coincidence.
Behind the scenes
- "Ah, yes. Harry Potter. Our new — celebrity."
- —Snape's first lines of the series[src]
- Severus Snape is portrayed by the late British actor Alan Rickman in all of the film adaptations, making him one of the 14 characters to appear in all eight film adaptations. He was Rowling's first choice for the role. Rickman died of cancer on January 14, 2016.
- It appears that he also played his part very well. Rupert Grint admitted to being afraid of him in an interview.
- Snape came very close to receiving Order of Merlin, First Class for subduing Sirius Black in Harry Potter and the Prisoner of Azkaban.
- Snape's character was loosely inspired by an unpleasant chemistry teacher J.K. Rowling had in secondary school.
- After Harry used Sectumsempra on Draco, the Unbreakable Vow Snape had made to protect the latter had been broken, thus marking the professor for death. Ironically, it was Snape's own spell that eventually caused his demise.
- When asked what Snape smelled like, J. K. Rowling answered: "Bitterness and old shoes."
- Rickman had conversations with Rowling about his character and is one of the few Harry Potter actors that she spoke to prior to the completion of the book series about the future direction of the character. "He knew very early on that he'd been in love with Lily," said Rowling. "He needed to understand [...] where this bitterness towards this boy who's the living example of her preference for another man came from." Rickman used this knowledge of Snape's ultimate loyalties throughout the films by deciding how to play certain scenes, deliver specific lines, or using body language to convey specific emotions. When the directors of the films would ask him why he was doing a scene a certain way or delivering a line in a specific manner, Rickman would simply reply that he knew something they did not. 
- Much like Gilderoy Lockhart, Snape's character is altered to appear more likeable in the movies than in the books. He does not openly insult or harass his students, with the exception of shoving or whacking Harry and Ron on the head to make them focus on their studies, and once when Ron sniggered when Umbridge was embarrassing him. He is notably less cruel to Harry than in the books, such as wishing him good luck on his first Quidditch match and even flashing him a slight smile, along with a sarcastic compliment on Harry's defeat of the mountain troll earlier that year. He initially defended him, Ron, and Hermione in the second movie from Filch's accusations when Mrs Norris was petrified, though he did note that there was a set of suspicious circumstances. Additionally, in the final film, when he talks with Dumbledore after revealing the Prophecy to Voldemort, he asks him to protect the entire Potter family, rather than only Lily, without Dumbledore having to prompt him to do so. Snape is also slightly more laid back and less antisocial in the movies. An example is when, in the third movie, he gestured Harry out of the Shrieking Shack with his head rather than verbally instructing him to leave.
- In Harry Potter and the Deathly Hallows: Part 2, Snape's death takes place in the school's Boathouse rather the Shrieking Shack. The art director of the series, Andrew Ackland-Snow, said in an interview with Cine Premier Mexico: "We wanted to change a bit where Snape dies. In the book, he dies in the Shrieking Shack, and we wanted to get him out from, not a conventional interior, but from that kind of box, to do it in a more dramatic atmosphere. We asked [Rowling] if she agreed for that to happen in there and she loved it ... Snape dies in a extremely good way, I gotta say."
- Despite his status as a Death Eater as well as implications that he had some form of status among them before Voldemort's attack on the Potters, Snape did not seem to be aware of Peter Pettigrew's role in the Death Eaters nor was he aware that Peter was actually the one who betrayed Lily to Voldemort as he seemed sure that Sirius Black was the culprit.
- It's likely however that he learned the truth following Voldemort's rebirth as he showed much less hostility towards Sirius than before (while still a significant amount) and he was made aware that Peter was alive and on the side of the Death Eaters.
- Actor Tim Roth was initially offered the role, but turned it down to work in Tim Burton's Planet of the Apes (2001). Rickman was cast later on.
- According to Rowling, Dumbledore never did anything about Snape's behaviour in class because "Dumbledore believes there are all sorts of lessons in life... and horrible teachers are one of them."
- In the film adaptations, Severus appears to be rather older than he is in the original books, being in his early thirties at the time of Harry Potter and the Philosopher's Stone. Alan Rickman was fifty-four when he was first cast.
- In the last film, Steve Kloves added a new scene to Snape's memories in which Snape visits Godric's Hollow shortly after Voldemort's arrival and collapses when he finds Lily's lifeless body among the wreckage in the house.
- J. K. Rowling, when asked if she considers Snape a hero, she said she thinks of him as an extremely flawed anti-hero, stating that though he was quite cold and spiteful and a bit of a bully, he was capable of love and was immensely brave.
- Alec Hopkins plays a young Snape in Order of the Phoenix and Benedict Clarke plays an even younger Snape in Deathly Hallows: Part 2.
- During one of the sneak missions in the PS1 version of Philosopher's Stone, Snape actually says "There is something very special in the Forbidden Corridor that I've had my eye on for some time. We can't let anyone interfere with my plans. Can we, Mr Filch?" as to confuse the player about who is looking for the Stone, although the line ultimately does not make much sense. However, one can interpret it as a way of bullying Argus Filch into aiding him protect the Stone from Quirrell.
- In the books, Snape is one of the youngest teachers to be recruited at Hogwarts school. Having taught at Hogwarts for fourteen years in Harry's fifth year, Snape has been teaching Potions since he was twenty-one (it should be noted that when Tom Riddle applied for the Defence Against the Dark Arts post when he was eighteen, Armando Dippet, then the Headmaster, rejected him on the basis that he was too young, although he invited him to reapply in a few years' time).
- The chapter illustrations by Mary GrandPré in the American editions depict Snape with a thin goatee.
- Snape attended Hogwarts exactly twenty years before Harry Potter.
- It is said by J.K. Rowling that Lily Evans may have grown to love Snape romantically if he was not so drawn to the Dark Arts.
- In the book, Nagini kills Snape by sinking her fangs into his neck after being released from her protective bubble. In the film adaptation, Lord Voldemort slashes Snape's throat, then orders Nagini to finish him off. Surprisingly, less blood is shown than in the book.
- Phineas Nigellus Black was cut from the film adaptations of Harry Potter and the Deathly Hallows. Hence, it is unclear how Snape located Harry and Hermione in the Forest of Dean. However, in Harry Potter and the Deathly Hallows: Part 2, as Neville is leading Harry, Ron, and Hermione in the secret passage Neville states that they "hardly see him," so in that time he could have searched over Britain to find them and give them the sword.
- Interestingly, Snape is the catalyst for the entire series, since it was he who told Voldemort of the prophecy and begged Voldemort to spare Lily, enabling her to sacrifice her life for Harry, thus enabling the protection that protected Harry for so long and ultimately led to Voldemort's death.
- Snape is the only Death Eater who could conjure a Patronus.
- In Harry Potter and the Prisoner of Azkaban (film), a scene with Snape was added when Lupin turned into a werewolf: instead of being unconscious as he was in the book, Snape regains his consciousness and goes to look for Harry with the intent of punishing him for his attack on him. When he hears Lupin roaring behind him and turns to find him transformed into a werewolf, Snape proves his great courage by shielding Harry, Ron and Hermione with his own body, taking a vicious slash from Lupin as a result.
- In Harry Potter and the Deathly Hallows: Part 2, while Harry is facing Voldemort, he calls Snape "Professor Snape". This is the first time that he addresses him with the title other than in his presence which shows that he has forgiven and even come to respect Snape for his courage and his sacrifices. One notable factor of the books was when Harry was speaking about Snape with Dumbledore, the latter would always ask Harry to address him as "Professor Snape".
- Amongst Severus Snape's possessions that he kept at his home was a curious object called a Dark Curio, though the object was only ever named such in the original script for Harry Potter and the Half-Blood Prince.
- When Jany Temime took over the role of costume designer for the films, many of the characters' wardrobes were re-designed, but Snape's costume remained unchanged throughout all eight films, as Temime thought the existing costume, consisting of a black robe, worked well with Snape's character.
- Snape once made an appearance in an episode of the TV show The Simpsons, in which he was voiced by actor Benedict Cumberbatch.
- It was because of Snape that Harry Potter became aware and practical of the Disarming Charm (Expelliarmus). Snape used it in the introduction of the Duelling Club while duelling with Gilderoy Lockhart. He said that students should learn to disarm their opponents.
- Severus and Lily were also close in age. They were born in the same month and year. He was only 21 days older than her.
- In Harry Potter and the Order of the Phoenix, Chapter 2 (A Peck of Owls), the author includes a bit of misdirection. After Petunia has revealed her knowledge of Dementors, she explains that she "heard -- that awful boy --teling her about them -- years ago." Both Harry and the reader assume that "that awful boy" is referring to James Potter. However, Snape's memories later reveal that it was a conversation between him and Lily Evans that Petunia overheard, and Snape was, in fact, "that awful boy." This is the first mention in the books of a relationship between Snape and Lily, but the reader has no way of knowing that until later.
- Snape's actor Alan Rickman died on January 14, 2016 - only five days after what would have been Snape's 56th birthday.
- Harry Potter and the Philosopher's Stone (First appearance)
- Harry Potter and the Philosopher's Stone (film)
- Harry Potter and the Philosopher's Stone (video game)
- Harry Potter and the Chamber of Secrets
- Harry Potter and the Chamber of Secrets (film)
- Harry Potter and the Chamber of Secrets (video game)
- Harry Potter and the Prisoner of Azkaban
- Harry Potter and the Prisoner of Azkaban (film)
- Harry Potter and the Prisoner of Azkaban (video game) (Not in the PC version)
- Harry Potter and the Goblet of Fire
- Harry Potter and the Goblet of Fire (film)
- Harry Potter and the Order of the Phoenix
- Harry Potter and the Order of the Phoenix (film)
- Harry Potter and the Order of the Phoenix (video game)
- Harry Potter and the Half-Blood Prince
- Harry Potter and the Half-Blood Prince (film)
- Harry Potter and the Half-Blood Prince (video game)
- Harry Potter and the Deathly Hallows
- Harry Potter and the Deathly Hallows: Part 1
- Harry Potter and the Deathly Hallows: Part 1 (video game)
- Harry Potter and the Deathly Hallows: Part 2
- Harry Potter and the Deathly Hallows: Part 1 (video game)
- Harry Potter and the Cursed Child (Appears in alternate reality)
- Harry Potter and the Cursed Child (play) (Appears in alternate reality)
- Fantastic Beasts and Where to Find Them (Mentioned only)
- LEGO Harry Potter: Building the Magical World
- LEGO Harry Potter: Characters of the Magical World
- Harry Potter: Quidditch World Cup
- LEGO Harry Potter: Years 1-4
- LEGO Harry Potter: Years 5-7
- LEGO Creator: Harry Potter
- LEGO Harry Potter
- Harry Potter Trading Card Game
- The Making of Harry Potter
- Harry Potter for Kinect
- Harry Potter: The Character Vault
- Harry Potter: The Creature Vault (Mentioned only)
- LEGO Dimensions
Notes and references
- ↑ Harry Potter and the Order of the Phoenix, Chapter 24 (Occlumency)
- ↑ Harry Potter and the Order of the Phoenix, Chapter 28 (Snape's Worst Memory)
- ↑ Harry Potter and the Deathly Hallows, Chapter 33 (The Prince's Tale)
- ↑ Harry Potter and the Deathly Hallows, Chapter 33 (The Prince's Tale)
- ↑ Snape was called this in this broadcast of Potterwatch.
- ↑ LEGO Harry Potter: Years 1-4
- ↑ J.K. Rowling Web Chat Transcript at The Leaky Cauldron, July 30, 2007
- ↑ Mentioned on the Half-Blood Prince script released on the Warner Bros. Awards website
- ↑ 9.0 9.1 Harry Potter and the Half-Blood Prince
- ↑ In a YouTube video of the Pottermore press conference on June 23, 2011, a preview of the website showed that Lily and Petunia were from Cokeworth, thereby confirming that Spinner's End is in Cokeworth also.
- ↑ Harry Potter and the Prisoner of Azkaban
- ↑ 12.0 12.1 Harry Potter and the Order of the Phoenix
- ↑ JK Rowling comments at Carnegie Hall
- ↑ 14.0 14.1 J.K. Rowling and the Live Chat, Bloomsbury.com, July 30, 2007
- ↑ Harry Potter and the Order of the Phoenix, Chapter 24 (Occlumency)
- ↑ Behind the Name: Severus
- ↑ 2000 Interview
- ↑ "Snape" entry on Dictionary.com
- ↑ (@jk_rowling what does snape smell like?) Bitterness and old shoes. by J.K. Rowling on Twitter
- ↑ Harry Potter and the Philosopher's Stone (film) - Chapter 8 (The Potions Master)
- ↑ http://www.snitchseeker.com/harry-potter-news/location-of-snapes-death-in-harry-potter-and-the-deathly-hallows-part-ii-changed-79349/
- ↑ "What Would ‘Potter’ Have Been Like With Tim Roth As Snape?" from MTV Movies Blog
- ↑ http://www.accio-quote.org/themes/snape.htm
- ↑ http://www.imdb.com/name/nm2263746/
- ↑ http://www.snitchseeker.com/harry-potter-news/young-severus-snape-and-scorpius-malfoy-actors-in-deathly-hallows-part-ii-revealed-78869/
- ↑ link title
- ↑ Half-Blood Prince script on the Internet Movie Script Database (archived here)
Alecto Carrow | Amycus Carrow | Antonin Dolohov | Augustus Rookwood | Avery (I) | Avery (II) |
Barty Crouch Jr. | Bellatrix Lestrange | Crabbe | Evan Rosier | Gibbon | Goyle |
Jugson | Lestrange | Mulciber (I) | Mulciber (II) | Nott | Pyrites (possibly) | Rabastan Lestrange | Rodolphus Lestrange | Rosier | Selwyn | Thorfinn Rowle | Travers | Walden Macnair | Wilkes | Corban Yaxley
|Death Eaters who Defected:|
|Death Eaters' allies:|
Albert Runcorn | Borgin | Dolores Umbridge | Fenrir Greyback | Golgomath |
Gregory Goyle | John Dawlish | Mafalda Hopkirk | Narcissa Malfoy (defected) | Pansy Parkinson | Quirinus Quirrell | Scabior | Vincent Crabbe
Dementors | Draco Malfoy's gang | Giants (Golgomath's control) | Muggle-Born Registration Commission | Snatchers | Werewolves