“Sulley, you're not supposed to name it. Once you name it, you start getting attached to it. Now put that thing back where it came from or so help me...!”
―Mike Wazowski
Mary Gibbs, better known as Boo, is the tritagonist of the 2001 Disney•Pixar animated film, Monsters, Inc.. She is a young girl who's not scared of any monsters except occasionally Randall, which happened to be her monster. Boo eventually ventured though her closet to enter the Monster world, where she developed a bond with Sulley and Mike Wazowski.
