Prof. mcgonagall

Intro (u know who she is no?) but in short She's the head of Gryffindor house and deputy headmistress under Albus Dumbledore. A strict but fair Transfiguration teacher, McGonagall is an Animagus who can transform into a tabby cat. She's described as a talented student who excelled in Transfiguration, a subject she considers one of the most complex and dangerous forms of magic taught at Hogwarts.