Mary Gibbs, better known as Boo, is the tritagonist of the 2001 Disney/Pixar animated film, Monsters, Inc.. She is a young girl who was occasionally scared by 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.
Mary “Boo“ Gibbs has been suggested to play 107 roles. Click below to see other actors suggested for each role, and vote for who you think would play the role best.
