Evil from the outside and lovely from the inside. We talk about Professor from our fanart Harry Potter Severus Snape Sticker - an English half-blood wizard serving as Potions Master, Head of Slytherin House, Defence Against the Dark Arts professor, and Headmaster of the Hogwarts School of Witchcraft and Wizardry, as well as a member of the Order of the Phoenix and a Death Eater. Many fans considered him a villain until his double life played a crucial role in the Wizarding Wars against Voldemort.