[[File:Yaxley_at_Ministry.jpg|thumb|200px|Yaxley present at the interrogation of Mary Cattermole.]]
[[File:Yaxley_at_Ministry.jpg|thumb|200px|Yaxley present at the interrogation of Mary Cattermole.]]
{{Dialogue a-b|Mary Cattermole|They're frightened, they think that I might not come home —|Yaxley|Spare us. The brats of Mud-bloods do not stir our sympathies.|An exchange during the interrogation of Muggle-born [[Mary Cattermole]].|Harry Potter and the Deathly Hallows}}
{{Dialogue a-b|Mary Cattermole|They're frightened, they think that I might not come home —|Yaxley|Spare us. The brats of Mud-bloods do not stir our sympathies.|An exchange during the interrogation of Muggle-born [[Mary Cattermole]].|Harry Potter and the Deathly Hallows}}
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Yaxley played a major role in this infiltration alongside Dolores Umbridge. During Umbridge's interrogations of [[Mary Cattermole]] as part of the [[Muggle-Born Registration Commission]], Yaxley sat next to her observing the case. When the trio reached the courtroom they saw Umbridge obtained [[Salazar Slytherin's Locket|the locket]] and at that moment they acted. Harry, under the [[Cloak of Invisibility|Invisibility Cloak]], [[Stunning Spell|Stunned]] Yaxley. When [[Harry Potter]], [[Hermione Granger]], and [[Ronald Weasley]]freed the Muggle-born prisoners, Yaxley, out of furiousness, attempted to stop them.
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Yaxley played a major role in this infiltration alongside Dolores Umbridge. During Umbridge's interrogations of [[Mary Cattermole]] as part of the [[Muggle-Born Registration Commission]], Yaxley sat next to her observing the case. When the trio reached the courtroom they saw Umbridge obtained [[Salazar Slytherin's Locket|the locket]] and at that moment they acted. Harry, under the [[Cloak of Invisibility|Invisibility Cloak]], [[Stunning Spell|Stunned]] Yaxley. When [[Harry Potter]], [[Hermione Granger]], and [[Ronald Weasley]]freedthe Muggle-born prisoners, Yaxley, out of furiousness, attempted to stop them.
[[File:Tvspot2capddd_10_(1).png|thumb|290px|Yaxley chasing the trio through the Atrium.]]
[[File:Tvspot2capddd_10_(1).png|thumb|290px|Yaxley chasing the trio through the Atrium.]]
"You realise that I am on my way downstairs to interrogate your wife, Cattermole? In fact, I'm quite surprised you’re not down there holding her hand while she waits. Already given her up as a bad job, have you? Probably wise. Be sure and marry a pure-blood next time... But if my wife were accused of being a Mudblood — not that any woman I married would ever be mistaken for such filth — and the Head of Department of Magical Law Enforcement needed a job doing, I would make it my priority to do this job, Cattermole. Do you understand me?"
Yaxley was one of the many Death Eaters who fought in the First Wizarding War. After Lord Voldemort's first downfall, Yaxley managed to avoid imprisonment in Azkaban. Like many others, Yaxley believed Voldemort had been finished and, thus, did not attempt to find him.[2]
Yaxley madly began to chase the trio as he ordered all Floo Network transportation to be sealed. At the last moments he grabbed Hermione's arm as the trio Disapparated. Hermione managed to evade him by using a Revulsion Jinx, but not before revealing the location of 12 Grimmauld Place. Thus, the house was no longer a safe hideout for the trio while leaving Ron splinched. After this the trio had to go to their tent in the forest.[10]
In 2 May, 1998, Yaxley participated in the Battle of Hogwarts. He and Antonin Dolohov stood guard in the Forbidden Forest during the brief interlude that followed Voldemort's ultimatum to Harry Potter. They were followed back to the Death Eater camp by Harry under his Invisibility Cloak.[11] During the final moments of the battle, Yaxley was defeated by Lee Jordan and George Weasley. His ultimate fate is unknown, though if he survived, he was most likely captured and sent to Azkaban along with the rest of the surviving Death Eaters.[12]
Physical appearance
Yaxley was described as having hard, blunt features[8] and an unpleasant smile. He was relatively tall.[8]He has blond hair that he prefers to tie back.
Yaxley, like many other Death Eaters, was obsessed with blood-purity.[10] In 1997, he became the Head of the Department of Magical Law Enforcement, and he, along with Dolores Umbridge, imprisoned muggle-borns in Azkaban. During one of such Yaxley laughed at Mary Cattermole, who was afraid of what would happen to her children, saying that "the brats of Mudbloods[did] not stir [his] sympathies",[10] indicating that he despises even half-bloods, despite Voldemort permitting them to continue living in the Wizarding community.
Yaxley is a proud and ambitious person, as he described in detail on how he subdued Thicknesse, as well as eagerly speaking of the plan to move Harry, in hopes of attracting more praise from Voldemort and fellow Death Eaters.[8] He also was very intimidating: he used his power as Head of the Department to intimidate Ron Weasley, disguised as Reginald Cattermole, to get his office dried in time, while ignoring a greeting from another wizard, showing his lack of manners.[3] However, he is not completely loyal to Voldemort, as he did not attempt to find him after his first downfall.
Imperius Curse: Yaxley was skilled in the use of the Imperius Curse, being able to keep Pius Thicknesse under his control throughout the entire war. However, Yaxley did claim that he had a difficult time in subduing Thicknesse.
Nonverbal magic: Yaxley hit Greyback with a powerful knock-back jinx, possibly Ventus, without speaking an incantation.[5]
Duelling: Yaxley was a very proficient duellist, able to hold his own extremely well against former duelling champion Filius Flitwick and fight him to a stalemate while Antonin Dolohov, one of Voldemort's most powerful Death Eaters, was defeated by Flitwick. Yaxley was amongst the Death Eaters who managed to last until the end of the Battle of Hogwarts and it took George Weasley and Lee Jordan to finally take him down.