Minerva McGonagall
She is a stickler and makes sure the students don't step out of line. She is Deputy Headmistress, Head of Gryffindor House and she teaches Transfiguration. She was shot by seven stunners and was sent to St. Mungo's for healing. She is still working at the school but currently has a cane to help her along.
Name Origin= Minerva was the Roman goddess of wisdom.