Boo", a 2-year-old human girl. She is unafraid of any monster except Randall, who regularly scared her from her closet. She has overcome her fear of Randall by the end of the movie. The book based on the film gives Boo's "real" name as Mary Gibbs, the name of her voice actress. In the film, Boo shows Sulley a drawing of Randall with her name "Mary" in a corner.