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I'm carrying on what you yourself began, and I'm creating a brand new world, one heart at a time.
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Japanese ブー
Voice actors (Ja:) Airi Inoue (archived audio)
(En:) Mary Gibbs (archived audio)
Homeworld Unknown
Origin Monsters, Inc.
Game Kingdom Hearts III

Kingdom Hearts III
Monsters, Inc. (2001)

A brave little human girl with boundless curiosity. She enjoys playing with Mike and Sulley on her occasional visits to Monsters, Incorporated.
"Mike Wazowski!"
—Boo, incorrectly identifying Donald Duck as Mike Wazowski

Boo is a character in Kingdom Hearts III. She appears in Monstropolis, but is originally from an unknown world.[1] She originated in the Disney/Pixar film Monsters, Inc.


Kingdom Hearts III[edit]


Boo is a toddler with black hair tied into short pigtails and brown eyes. She wears a pink shirt with purple leggings and white socks.



Boo first appeared in the 2001 film Monsters, Inc., voiced by Mary Gibbs.

In the film, Boo manages to find her way into the Monsters, Inc. company building from her bedroom. Boo is not her real name, but simply, a nickname given to her by Sulley.

Notes and references[edit]

  1. ^ Kingdom Hearts III, Mike Wazowski: "It’s kind of a long story...but Boo’s from another world..."