Organizations: Death Eater, member of the Order of the Phoenix.
Specialties: Potions, curses, Occlumency. He invented his own spells such as Levicorpus, Muffliato, and Sectum Sempra.
Calligraphy: Lowercase, with the words very tight.
Patronus: a doe, just like Lily Potter's.
Worst memory:
Possibly the worst experience of his life was the episode in which James Potter put upside down, showing all present their underwear. But ccording to Dumbledore, his worst moment ever was when he discovered that Voldemort had killed the Lily Potter.
Punishment:
He never spend time in Azkaban. Allthough Death Eater Igor Karkaroff denounced him during a trial, Dumbledore defended him.
Battles fought:
Snape was at the Battle of the Tower, where he killed Dumbledore and then helped Draco Malfoy to safety. In the Battle of the Seven Harrys, Snape fought with the rest of the Death Eaters and accidentely cursed George Weasley's ear off with Sectum Sempra. He was not present at the Battle of Hogwarts, but with Voldemort in the shrieking shack.
Other Qualities: Some theories suggest that Snape was a spider animagus.
