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
Poltergeist (band) star drummer Peter Haas, as well as deeper and more prominent guitar and vocal chords. "Back to Haunt," Poltergeist's first album in 23 years, is a technical thrash metal album with melodic vocals, sophisticated songwriting, and powerful production. V.O. Pulver and Marek Felis formed the still-active heavy metal band Gurd in 1994. Drummer Peter Haas played in the bands Mekong Delta, Babylon Sad, Calhoun Conquer, Krokus, Clockwork, Ain't Dead Yet, and Coroner. Former drummer Rolf Heer played for Braindead and Messiah. Former drummer Alex Lang played for the short-lived thrash band Cryonix. Poltergeist (band) Poltergeist, originally Carrion, is a Swiss