Mary Gibbs: Mary Gibbs. Actress: Monsters, Inc.. Mary Gibbs was born on 5 October 1996 in Pasadena, California, USA. She is an actress, known for Monsters, Inc. (2001), Inside Out (2015) and Tracy (2009).
Known For: Monsters, Inc. (Boo(voice)), Inside Out (Additional Voices(voice)), Tracy (Train Station Kid), Monsters, Inc. Scream Arena (Boo(voice, as Mary Morgan Gibbs))
