A hedgehog is a spiny mammal with a nose like a pig. It is used in transfiguration class. Thaddeus Thurkell, a wizard, once had seven children who turned out to be Squibs. In anger, Thaddeus turned them all into hedgehogs.

The Knarl greatly resembles a hedgehog; behaviourally the only difference between the two is that a hedgehog will happily accept a gift of milk, whereas a Knarl will believe it to be an attempt to lure it into a trap.

AppearancesEdit

• Harry Potter and the Philosopher's Stone (video game) (Appears on a Famous Wizard Card)
• Harry Potter and the Chamber of Secrets (video game) (Appears on a Famous Wizard Card)
• Harry Potter and the Prisoner of Azkaban (video game) (Appears on a Famous Wizard Card)
• Harry Potter and the Goblet of Fire
• Harry Potter and the Order of the Phoenix
• LEGO Harry Potter: Years 1-4
• LEGO Harry Potter: Years 5-7