Nezu

Mr. Principal is a Hero and the principal of Yuuei Academy. He is an animal who manifested a Quirk.

Appearance
He has the face of a bear, with a large scar going across his right eye, nearly to his neck. He has the nose and tail of a mouse, along with dog paws for hands.

He is most often seen wearing an elegant suit with large shoes.

All Might
He and All Might have a very good relationship, he constantly worries about him, as he is one of the few people that knows about his Quirk and his condition. He was the one that gave him the job as a teacher at Yuuei, which was done to keep him safe.

Trivia

 * Most people cannot tell if he is a mouse, a dog, or a bear.
 * He is an extremely rare case in which a Quirk manifests inside an animal.