Severus Snape - Here's a little excerpt from Wikipedia..Interesting bit of info for me lies in the years he attended Hogwarts. Severus Snape (born January 9, c.1958) is a fictional character in the Harry Potter series of novels by J. K. Rowling. His first appearance was in the book Harry Potter and the Philosopher's Stone, published in 1997. Snape attended Hogwarts School of Witchcraft and Wizardry from c. 1969 to c. 1976, was appointed Professor of Potions, and Head of Slytherin house, in c. 1981. His physical appearance is that of the classic villain: thin, 'hook-nosed' and having 'long, greasy hair', clad in forbidding black robes 'like an overgrown bat'.[HP1] Harry Potter intensely dislikes and distrusts Snape for his chequered past and the animosity Snape displays towards him. In the Harry Potter films, the character is played by actor Alan Rickman.