A werewolf and Death Eater. Unlike Lupin, who strives to overcome his disability and live a normal life, Greyback embraces his status and actively tries to bite children, attempting to create an army of werewolves who will fight against wizards. Although he’s a brutal and extremely unsympathetic character, his disaffection with the Wizarding world is at least partly a result of the stigma and prejudice that exists against werewolves.