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|films = ''[[Monsters, Inc.]]''
|films = ''[[Monsters, Inc.]]''
|voice = [[Mary Gibbs]]
|voice = [[Mary Gibbs]]
|personality = Good, happy, cute, beautiful
|personality = Sweet, happy, cute, beautiful
|alliance = Good
|alliance = Good
|home = Her Room, The Human World
|home = [[Boo's Room|Her room]], the Human World
|friends = [[Sulley]], [[Mike Wazowski|Mike]]
|friends = [[James P. Sullivan|Sulley]], [[Mike Wazowski]]
|enemies = [[Randall Boggs|Randall]], [[Mr. Waternoose]], [[Sid Phillips]]
|enemies = [[Randall Boggs|Randall]], [[Mr. Waternoose]]
|fate = Returns to her room
|fate = Is returned to her room.
|quote = ''"[[Sulley|Kitty]]!"''|appearance = Small, slender, 3 years old, brown hair in pigtails, brown eyes, fair skin, pink dress, purple leggings, white socks
|quote = "[[Sulley|Kitty]]!"|appearance = Small, slender, 3-year-old girl brown hair in pigtails, brown eyes, fair skin, pink dress, purple leggings, white socks
|goal = To return to her room
|goal = To return to her room
|likes = Having fun and laughing
|likes = Having fun and laughing
|dislikes = Being in danger, Randall scaring her and screaming
|dislikes = Being in danger, Randall scaring her
|powers = Her laughter and screams can cause a power outage while in the Monster World
|powers = Her laughter and screams, which can cause a power outage while in the Monster World
|weapons = Toy Bat (only in the climax of the film)}}'''Boo''' is the tritagonist in Disney/Pixar's 2001 film ''[[Monsters, Inc.]]''. She was voiced by [[Mary Gibbs]].
|weapons = Toy bat (only in the climax of the film)||occupation = Child}}'''Boo''' is the tritagonist in Disney/Pixar's 2001 film ''[[Monsters, Inc.]]''. She was voiced by [[Mary Gibbs]].

Revision as of 04:51, October 27, 2012

Background information
Feature films Monsters, Inc.
Television programs
Video games
Park attractions
Portrayed by
Portrayed by
Voice Mary Gibbs
Performance model
Honors and awards
Character information
Full name
Other names
Personality Sweet, happy, cute, beautiful
Appearance Small, slender, 3-year-old girl brown hair in pigtails, brown eyes, fair skin, pink dress, purple leggings, white socks
Occupation Child
Alignment Good
Goal To return to her room
Home Her room, the Human World
Allies Sulley, Mike Wazowski
Enemies Randall, Mr. Waternoose
Likes Having fun and laughing
Dislikes Being in danger, Randall scaring her
Powers and abilities Her laughter and screams, which can cause a power outage while in the Monster World
Weapons Toy bat (only in the climax of the film)
Fate Is returned to her room.
Quote "Kitty!"

Boo is the tritagonist in Disney/Pixar's 2001 film Monsters, Inc.. She was voiced by Mary Gibbs.


Boo is a toddler who is curious, and naive. She can speak, but has baby, gibberish vocabulary. The only actual words she says in the film are "Boo!", "Kitty!", and "Mike Wazowski!".


Monsters, Inc.

In the first film, Boo is a 3-year-old human child who has escaped from her room from which Randall intended to kidnap her. Much of the film's plot follows what happens as Mike and Sulley try to get Boo back to safety. When she first appears, Boo is very attached to Sulley (calling him "Kitty"), but he is not so keen. But as the film progresses, he develops a bond with her. At one point, Sulley, under Mr. Waternoose's orders, roars in front of a child used for simulation, not noticing that he has also scared Boo. Sulley tries to apologize to Boo, but she is too terrified of him and runs to cower underneath Waternoose's legs. Waternoose, who has caught sight of Boo, decides to take care of her before anything worse happens. After he and Randall banish Mike and Sulley to the Himalayas, they proceed with extracting screams from Boo by using the Scream Extractor. However, Sulley arrives at the last moment to disable the device to free Boo. Mike catches up with them, and they rush back to Scare Floor F, with Randall in hot pursuit. Randall chases them to a large chamber where thousands of doors to human world are kept. Mike and Sulley then make Boo laugh to activate the doors, then they go through them, exiting the monster world and entering back into it, in order to lose Randall and reach Boo's door. Just as it looks like Mike and Sulley have lost Randall, Boo suddenly slips off from Sulley's arms, and Randall reveals that he has caught her. Sulley manages to catch up with Boo, but then Randall ambushes Sulley. Just as Randall is about to finish Sulley off, Boo suddenly jumps on Randall and beats him with a baseball bat. Boo has managed to overcome her fear of monsters, especially Randall. After Mike and Sulley banish him through another door, disable that door, and let it fall to the bottom of the chamber to ensure that he will never return, Boo blows a raspberry directed at the shattered door. They open Boo's door, only to realize that the power has went out, but then, the door moves back to Scare Floor F, where Waternoose and the CDA agents are waiting. Mike runs off with Boo's monster costume as the agents goes after him while Waternoose notices Sulley with Boo and her door and chases them to the simulation room, where he is lured into a trap set by Mike. Mike exposes Waternoose's plot to kidnap a thousand children (possibly including Boo) to satisfy his own agenda to the agents, who then turn on Waternoose and arrest him. Immediately thereafter, Roz, revealed to be Agent 001 of the CDA, enters and decides that Boo's door is to be destroyed after she is safely returned to her room in order to ensure that she will never come back again. Sulley takes her in to her room and tucks her in after she shows him her toys, including Jessie the Yodeling Cowgirl from Toy Story 2, a ball from Luxo, Jr., and Nemo from Finding Nemo. Boo and Sulley take a possibly one last look at each other, then after Sulley closes the door, Boo then opens it to possibly surprise him, only to find her closet instead and Sulley nowhere. After her door is shredded, Sulley feels sad that he'll never see Boo again and keeps one of the splintered pieces from her door as a memento.

At the end of the film, Mike brings Sulley (now the new CEO of Monsters, Inc.) a surprise, which turns out to be Boo's door reassembled. The door becomes functional when Sulley places the piece he has kept, and he opens it to see Boo, who (although off-screen) recognizes him by saying, "Kitty!" This gives Sulley a surprised grin on his face as the film closes.

Monsters, Inc. Laugh Factory

Boo appears throughout the miniseries, though her largest part is in issues three and four.

In Issue 3, her Jessie doll is stolen by Sid Phillips (though he goes unnamed in the comic), who wants to steal toys from kids to try and spare them from what happened to him. He hides in Boo's room from Mike and Sulley, who have been pursuing him through the door system. After finding her toy has been stolen when he escapes, Boo goes angrily in pursuit, putting on her monster costume and helps Mike and Sulley find Sid in the Monsters, Inc. facility. Getting Jessie back, the monsters don't believe Sid's stories about living toys and send him back to the human world through his sister's door.

In issue 4, Sid, Waternoose and Randall team up to get their revenge. A visit to Boo's leaves Mike, Sulley and Celia trapped. Boo stowed away and allows for a means to reactivate the door briefly, escaping with Celia back into the human world. Escaping the clutches of the pursuing villains, they end up leading them into another trap set up by the CDA to recapture the three.

Disney Parks

Boo at one of the Disney parks.
S071084Added by S071084

Boo often appears in her monster costume in parades. She also appears in attractions based on the film.



  • In her bedroom, Boo has a Pixar ball, a toy Nemo and a Jessie doll.
  • In a book based on the first film, it is revealed that Boo's real name is Mary Gibbs (the same name as her voice actress.) In the film, she signs her drawings with the name "Mary".
  • In an early animation test for Boo's t-shirt, it has a picture of Heimlich from A Bug's Life on it.
  • In Toy Story 3, there is a girl in the Butterfly Room at Sunnyside Daycare who looks like a slightly older Boo. She is seen playing with a blue cat (Boo's nickname for Sulley is "Kitty") and says "Boo," possibly reenacting a scene from Monsters, Inc. Judging by the years that passed, there is nothing that suggest that Boo and the Sunnyside girl are not one and the same. However, Lee Unkrich has confirmed that they are not the same character.
  • According to the artwork in the DVD, there are a bunch of drawings of Boo being slightly older (possibly around the ages 5-10) in her early works; but the final designs were later confirmed that Boo would be a toddler instead of a child. In the documentary with the characters, Billy Crystal said that Boo was an adorable three year old little creation.
  • In Cars, a car version of her, named "Boomobile," is mentioned.

Monsters, Inc.

Media: Monsters, Inc. | Monsters University | Monsters, Inc. (video game) | Monsters, Inc. Scream Arena | Mike's New Car | Monsters, Inc. Scare Island | Monsters, Inc. Scream Team | Monsters, Inc. Scream Team Training | Disney Universe | Disney INFINITY | Party Central

Monsters, Inc. Characters: Sulley | Mike Wazowski | Boo | Randall Boggs | Fungus | Henry J. Waternoose III | Celia Mae | Roz | Needleman and Smitty | Flint | Thaddeus Bile | Jerry | Chalooby | Claws Ward | Lanky Schmidt | George Sanderson | Charlie Proctor | Spike Jones | Ricky Plesuski | Theodore Pauley | Noodles Rivera | Harley Gerson | Waxford | CDA | Tony | Ted | Sushi Chef | Baby Smitty | Yeti | Mrs. Wazowski

Monsters University Characters: Art | Frank McCay | Carrie Williams | Claire Wheeler | Terri and Terry Perry | Squishy | Big Red | Reggie Jacobs | Chet Alexander | Chip Goff | Javier Rios | Johnny Worthington III | Don Carlton | Sheri Squibbles | Dean Hardscrabble | Professor Knight | Brock Pearson | Archie the Scare Pig | Slug | The Librarian

Fraternities/Sororities: Oozma Kappa | Roar Omega Roar | Jaws Theta Chi | Slugma Slugma Kappa | Eta Hiss Hiss | Python Nu Kappa | Scare Games

Locations: Paris, France | Monstropolis | Monsters, Inc. | Scare Floor F | Harryhausen's | Himalayas | Boo's Room | Trailer Son and Mom | Monsters, Inc. Laugh Floor | Monsters University | Fear Tech | Scare Floor D

Objects: Scarer's Leaderboard | Scream Canisters | Doors | Little Mikey | Pixar Ball | Pizza Planet truck

Park Attractions: Monsters, Inc. Ride & Go Seek | Monsters, Inc. Mike & Sulley to the Rescue! | Monsters, Inc. Laugh Floor

Songs: If I Didn't Have You | Put That Thing Back Where It Came From Or So Help Me | Monsters University (song)

Merchandise: Monsters, Inc. Laugh Factory

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