Slytherins

Tom Marvolo Riddle
Severus Snape
Bellatrix Lestrange
Rodolphus Lestrange
Regulus Black
Horace Slughorn
Andromeda Tonks
Phineas Nigellus Black
Draco Malfoy
Lucius Malfoy
Narcissa Malfoy
Vincent Crabbe
Gregory Goyle
Pansy Parkinson
Blaise Zabini
Rita Skeeter
Marcus Flint
House of Gaunt
Dolores Umbridge