Albus Dumbledore - Headmaster
Argus Filch - Caretaker
Filius Flitwick - Charms
Ruebus Hagrid - Gamekeeper, Care of Magical Creatures
Madam Hooch - Quidditch
(Gideroy Lockhart - Defense Against the Dark Arts)
(Remus Lupin a.k.a. Moony - Defense Against the Dark Arts)
Minerva McGonagall - Transfiguration, Deputy Headmistress
(Alastor Moody a.k.a Mad Eye Moody - Defense Against the Dark Arts)
Madam Pince - Librarian
Poppy Pomfrey - Nurse
(Quirrel - Defense Against the Dark Arts)
Severus Snape - Potions
Sinistra - Astronomy
Sprout - Herbology
Sibyll Trelawney - Divination
Vector - Arithmancy
