Peterson is an employee and scarer (later comedian) at Monsters, Inc. He uses his large teeth to his advantage.
Peterson is a large light blue dinosaur-like monster with a huge set of fake teeth, that he uses to scare. skin is light blue, with two large legs. On his head, he has one horn.
- He is named after Bob Peterson the Film’s story supervisor (who also voiced Roz).
- He is the 6th best scarer on the leaderboard.