Three-headed dog

Three-headed dogs are very rare creatures. It is unknown if, like the Runespoor, each head serves a different purpose. Their great weakness is the inability to resist falling asleep to the sound of music.

Rubeus Hagrid once owned a three-headed dog named Fluffy, which he obtained from a Greek man he met at a pub. Fluffy served as one of the obstacles to the Philosopher's Stone in 1992.

Behind the scenes

 * In Greek mythology, Cerberus was a three-headed dog that guarded the gates to the underworld. In order to get past him, music would have to be played for him to fall asleep, as portrayed in the movie.
 * In the film version of Harry Potter and the Philosopher's Stone, Hagrid gets Fluffy from "an Irish fellow". In the novel, Hagrid gets him from "a Greek chappie".
 * In The Wizarding World of Harry Potter one can purchase a plush version of Fluffy.

Appearances

 * Harry Potter and the Philosopher's Stone
 * 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 Goblet of Fire
 * Harry Potter and the Deathly Hallows
 * Harry Potter: A Pop-Up Book
 * LEGO Harry Potter: Building the Magical World
 * LEGO Harry Potter: Characters of the Magical World
 * LEGO Harry Potter: Years 1-4
 * The Wizarding World of Harry Potter
 * Harry Potter Trading Card Game
 * Harry Potter LEGO Sets
 * Pottermore