Werewolves

Werewolves are half wolf and a half man species. Lord Voldemort recruited werewolves for his Dark Army, or Death Eaters, and in the seventh book, Fenrir Greyback aids in the invasion of Hogwarts, and hemurder of Albus Dumbledore. Professer Remus Lupin was also a noticable werewolf, and really shows his darker side in book 3 Prisoner of Azkaban. Remus was freinds with Lily and James Potter, Peter Pettigrew, and Sirius Black growing up in Hogwarts.