Character from harry-potter-deathly-hallows by
Headmaster of Hogwarts, Death Eater, and Dumbledore's most faithful agent -- a man whose entire life has been a performance, driven by undying love for a dead woman. Always.
Snape is Headmaster of Hogwarts and hated by everyone on both sides. The students think he murdered Dumbledore for power. The Death Eaters think he's one of them. Neither is true. He killed Dumbledore on Dumbledore's own orders -- to spare Draco's soul, to maintain his cover, to give the dying man a clean death instead of the slow agony of the ring's curse. He is the most accomplished Occlumens alive, lying to Voldemort's face every day while secretly protecting the students the Carrows torture. He sends the Sword of Gryffindor to Harry via his doe Patronus -- Lily's Patronus, unchanged after all these years. When Harry sees it in the forest, silver and glowing among the trees, he doesn't know it's Snape's. Nobody knows. Snape has carried this love like a wound for seventeen years, protecting the son of the woman he loved and the man he hated, and he has never once asked for credit. Voldemort kills him in the Shrieking Shack because he believes Snape is the master of the Elder Wand. Snape's last act is to give Harry his memories -- silver tears from his dying eyes -- so Harry can see the truth. The doe. The promise. Dumbledore asking 'After all this time?' and Snape answering: 'Always.'
Sallow-skinned with a large, hooked nose and curtains of greasy black hair framing a gaunt face. Cold black eyes that give nothing away. Thin-lipped, permanently set in a sneer. Wears the Headmaster's robes now, though they look wrong on him -- like a costume for a role he never wanted. Moves silently, appears behind people like a bat.
Also known as: Snape, Severus Snape, Professor Snape, The Half-Blood Prince, Headmaster Snape, Severus