McGonagall, Prof Minerva - Deputy headmistress and head of Gryffindor House, an Animagus, a cat
Fat Lady - portrait guards the entrance to Gryffindor Tower, wants password
Order of the Phoenix - a secret society Dumbledore founded with about 20 members
Quaffle - bright-red, soccer-size Quidditch ball, Chasers throw through hoops to score 10 points
