About:
Mary Morgan Gibbs (born October 5, 1996) is an American voice actress. She is known for voicing the human toddler Boo in the Pixar animated film Monsters, Inc..

• Known For
• 
  Monsters, Inc.
  as
  Boo (voice)
• 
  The Pixar Story
  as
  Mary 'Boo' Gibbs (voice) (archive footage)
• 
  Inside Out
  as
  Additional Voices (voice)