Boo

The little girl who wandered into the monster world

A little girl who accidentally entered the monster world and forms a bond with Sulley and Mike.

Quotes

  • Kitty (nya nyan)
  • Boo's laughter makes the door light up

Trivia

  • Boo's model is the staff's daughter, Mary Gibbs herself.
  • Boo's room contains a Nemo doll from Finding Nemo and a Jessie doll from Toy Story 2.
  • Celia's hair is all snakes, but Boo is scared of it.
  • Although Boo's speech is clumsy, she memorizes Mike's full name, showing her cleverness.
  • The movie's bloopers feature many scenes of the child playing Boo showing genuine smiles.
  • In the door vault scene, sets of houses from various countries appear, including a Japanese house with Mt. Fuji visible.

Alternate names

Boo Mary Gibbs Kitty

Tags

Boo Monsters Inc Toddler girl Monster world Cute Pixar Disney Child

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Profile

Species
Human
Gender
Female

Appearance

Overall appearance
A young human girl. Dark brown hair in pigtails. Lives in her own room beyond a door with a white background and floral pattern.
Height
Toddler build
Eye color
Brown
Hair color
Brown
Distinguishing features
  • Pigtails
  • Round face typical of a toddler
  • Small and cute impression in the monster world
Iconic items
  • Door with white background and floral pattern
  • Bear plush (Little Mikey)
  • Monster costume (body made of chair fabric, mop hair, lightbulb eyes)

Personality and abilities

Core personality
Curious
Detailed personality
Although her speech is still immature, she is very curious and warms up to monsters without fear. She has a brave side that quickly befriends even timid monsters.
Keywords
  • Curious
  • Brave
  • Innocent
  • Adorable
  • Sometimes shows timid gestures
Talents
  • Can travel between the human world and monster world
  • Quick language acquisition (remembers monster names)
  • Ability to bond with monsters
Skills
  • Communication with single words
  • Evasion during hidden troubles (quick to run away)
  • Courage to stand up to enemies
Motivation
To safely return to her original world.
Habits
Calls Sulley 'Kitty'.
Favorite foods
Sweet snacks, Milk, Cake
Hobbies
Playing, Hugging plush toys, Exploring
Person
Sulley, Mike
Disliked situations
Scary monsters, Separation / loneliness
Disliked insects
Snakes (especially dislikes Celia whose hair is snakes)

History

Backstory
A little girl whose closet door in her room in the human world connects to the Monsters, Inc. world, and she wanders into it. The monsters were wary of human children as terrifying, but Boo approaches them fearlessly and grows fond of them. In the story, she builds deep friendships with Sulley and Mike, and after being saved from the conspiracy, she safely returns to her own world.
Debut date
November 2, 2001
Work title
Monsters, Inc.
Media type
Movie

Tumult in Monsters, Inc.

Significant event
Tumult in Monsters, Inc.
Description
Wanders into the Monsters, Inc. world, meets Sulley and Mike, and gets involved in the incident.

Forming friendship with Sulley and others

Significant event
Forming friendship with Sulley and others
Description
Initially regarded as an object of terror, but gradually builds a trusting relationship and is given a name.

Return to the human world

Significant event
Return to the human world
Description
With the help of Sulley and Mike, safely returns to the human world, and later the door is repaired for continued exchanges.

Relationships

Mary Gibbs

Modeled after the real name of the staff's daughter, but explicitly stated as her real name in the film.

Mike Wazowski

Friend

Cooperates with Sulley to protect Boo and strives to return her to her original world.

Media appearances

Monsters, Inc.

Movie / Protagonist

November 2, 2001 (US release)

Monsters at Work

Anime / Supporting

2021

Monsters, Inc. (game)

Game / Protagonist

2002

Voice cast and creators

Airi Inoue

Voice actor
Airi Inoue
Language
Japanese
Version or series
Japanese dub of theatrical Monsters, Inc.

Mary Gibbs

Voice actor
Mary Gibbs
Language
English
Version or series
Original English voice
Notes
Actual staff's daughter during recording

Pete Docter

Creator name
Pete Docter
Role
Original author

Jill Culton

Creator name
Jill Culton
Role
Original author

Jeff Pidgeon

Creator name
Jeff Pidgeon
Role
Original author

Ralph Eggleston

Creator name
Ralph Eggleston
Role
Original author

Andrew Stanton

Creator name
Andrew Stanton
Role
Writer

Dan Gerson

Creator name
Dan Gerson
Role
Writer

Pixar Animation Studios

Creator name
Pixar Animation Studios
Role
Animation studio

Walt Disney Pictures

Creator name
Walt Disney Pictures
Role
Licensee

Related goods

Boo figure

Item name
Boo figure
Category
Figure
Availability
Regular

Boo plush

Item name
Boo plush
Category
Plush or doll
Availability
Regular

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