Hogwarts staff of the Marauder's Map (the Weasley twins, Harry, Ron and Hermione), and Voldemort himself. He tends to favor almost sadistically harsh punishments, and gleefully allies himself with Umbridge when she prescribes such punishments on students. He has an obsessive dislike of mud, animate toys, and all other things that might interfere with his desire for an immaculately clean and orderly Hogwarts. He is also portrayed as having a constant antagonism towards Peeves the poltergeist and often tells Dumbledore that Peeves should be thrown out of Hogwarts. He also likes to wander Hogwarts corridors at night, presumably in the hope of
Hogwarts staff end credits, his latest book is on sale in Diagon Alley; titled "Who Am I?", it displays a picture of him humming distractedly to himself and wearing a straitjacket. Minerva McGonagall is deputy Headmistress, head of Gryffindor House, Transfiguration professor, and later Headmistress at Hogwarts. She is first introduced in the opening chapter of "Harry Potter and the Philosopher's Stone", when she meets Dumbledore at Number 4 Privet Drive, Little Whinging, Surrey (the home of Harry's aunt and uncle, Vernon and Petunia Dursley). McGonagall is described as a tall, rather severe-looking woman, with black hair typically drawn into a tight