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Mike: "Boo? What's Boo?"
Sulley: That's... what I decided to call her. Is there a problem?"
Mike: "Sulley, you're not supposed to name it. Once you name it, you start getting attached to it. Now put that thing back where it came from or so help me!"
―Sulley and Mike
Boo-0
Boo1

Boo (real name Mary Gibbs) is the tritagonist of Monsters, Inc. She is Sulley's human best friend.

Bio

Monsters, Inc.

Boo monster
Boo-0
Monsters, Inc
Monsters, Inc
Monsters, Inc

In the first film, Boo is a 2-year-old human child who has escaped from her room from which Randall intended to kidnap her and use her to test his new machine. Much of the film's plot follows what happens as Sulley and Mike 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 Mr. Waternoose's legs. Waternoose, who has caught sight of Boo, decides to take care of her before anything worse happens. After he reveals that he is the one who ordered Randall to kidnap he banishes Sulley and Mike to the Himalayas. Randall proceeds with extracting screams from Boo by using the Scream Extractor (at one point, Mr. Waternoose argues with Randall that he shouldn't have trusted him with his plans). However, Sulley arrives at the last moment to disable the device and 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 some 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. She lets Sulley have 5 minutes to say goodbye. 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 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 happily saying, "Kitty!" This gives Sulley a surprised grin on his face as the film closes.

Monsters University

In the prequel, Boo doesn't appear as the film takes place before she met Sulley and Mike.

Personality

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

Description

Boo is shown wearing a pink nightdress, purple capris leggings, and white socks. She has short dark brown hair with all in pigtails held by pink hair bobbles. She makes friends with Sulley and Mike after she sneaks through her door into Monsters, Inc.

Appearances

Films

TV Series

Video Games

Comics

Trivia

  • In one of the first film's early drafts, she was originally an 8 year-old boy named Raymond, who befriended Sulley (back then named Hob).
  • 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, Mike's voice actor, said that Boo was an adorable 3-year-old little creation.
  • At another point, Boo was going to be the youngest and only female child with siblings who was constantly picked on by her older brothers, and befriended Sully (then known as Johnson) so that he could protect her.
  • In Cars, a car version of her named "Boomoblie" is mentioned.
  • In her bedroom, Boo has a Luxo Jr. ball, a toy Nemo, and a Jessie doll.
  • In an early animation test for Boo's T-shirt, it has a picture of Heimlich from A Bug's Life on it.
  • During the scene where Sulley and Mike hide Boo in the bathroom, one of the songs Boo sings behind the stalls is "Beauty and the Beast", from the animated Disney film of the same name.
  • Another scene in the film had Boo say to herself, "I'm Tigger!" Tigger is a tiger character from the Winnie the Pooh franchise.
  • 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".
  • According to some Monsters, Inc. coloring pages, some of the outfits Sulley and Mike made Boo wear before deciding on the monster costume was that of a princess, a witch, a clown, and a doctor.
    Boo cameo

    Boo's possible cameo in Toy Story 3

    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. However, Lee Unkrich has confirmed they are not the same character.
  • There is also speculation that Bonnie Anderson from Toy Story 3 could be an older Boo due to having Sulley's colors and print decorating her bathroom, and having a similar appearance. However, those rumors haven't been proven yet.
  • When Boo tries to open her closet door after Sulley tells her goodbye and closes it, she is now 7% taller since the programmers noticed that she was too short.
  • Originally, Boo was actually going to return in the second Monsters, Inc. film (which was then supposed to take place ten years after the original rather than before it) as a teenager. In this film, Sulley and Mike, while trying to celebrate her birthday find out that Boo and her family have already moved to a different house when they find an old woman sleeping in what was once her room one day, causing the two monsters to travel into the human world to look for her new house. Unfortunately, the two monsters start to forget how to get back to their world, and to make matters worse, Boo doesn't even remember them anymore since teens and adults do not believe in monsters, nor does think they're funny, and the only way to get back is to try to make her laugh again. The reason why this sequel was scrapped in the first place was because John Lasseter thought that the final shot of the first was just too heartwarming to be continued.[citation needed]
  • Boo shares her voice actress with Toddler Riley from Inside Out.
  • Boo could be a younger version of Violet from the Incredibles.
    • If she is the younger version of Violet and could explain how she's able to scare Mike and Sulley due to Violet's invisible ability.
  • There's no doubt saying Boo will be in the 2021 upcoming series Monsters at Work. She possibly might return since Mike rebuilt her door after it got shredded, and the time came when Sulley had to say goodbye to her at the end of the movie, so the series might have them reunite. She also never returned in Monsters University, because it's the prequel and she hasn't met Sulley since then.

Quotes

"Boo!"
―Boo
"Kitty!"
―Boo, nicknaming Sulley
"Mike Wazowski!"
―Boo, reciting Mike's name
Sulley: "Boo?"
Boo: "Kitty!"
―Sulley calls to Boo as he looks into her room via her reassembled door
"Cookie?"
―Boo, saying her first line.
"I'm little baby! Kitty! La la la!"
―Boo running before Sulley.
"Wanna ride on it! Da da da, da da da!"
―Boo, saying that she wants to ride on the DVD case.
"I like that one!"
―Boo, giving Nemo to Sulley.
"Roar!"
―Boo as she roars.
"So get all right!"
―Boo, as she says to Sulley to get all right.
"The guy just went it to the ball!"
―Boo, saying to Sulley if Mike has escaped.


Gallery

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