Boo

**Mary "Boo" Gibbs** is the tritagonist of the 2001 film Monsters, Inc..

## Background

### Personality

Boo is a 2-year-old toddler who is curious and naïve. She can talk, but mostly has gibberish vocabulary and little dialogue because of her age. The only actual words she says in the film are "Boo!", "Kitty!", "Eww.", "Roar!" "Cookie.", "I'm Tigger.", "Gotcha!", "Look I made a big hole!", and "Mike Wazowski!". In other ways, she is advanced for her age, such as already being potty-trained. This is seen when she shows to Sulley that she needs to go to the bathroom and does not need any assistance. She is also able to draw recognizable figures of Randall, Sulley, Mike, and herself and colour them realistically.

### Physical Appearance

Boo is a small, slender, fair-skinned, little girl with dark brown hair in pigtails, brown eyes, a pink nightshirt, purple leggings, and white socks.

## Film Appearances

### Monsters, Inc.

In the first film, Boo is a two-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 Sulley and Mike try to get Boo back to her room safely.

When she first appears, Boo is very attached to Sulley (calling him "Kitty"), and she thinks he's playing with her, but he is not so keen, but as the film progresses, he develops a bond with her. To get Boo to her door without drawing attention, Mike and Sulley make a homemade monster costume (using chair-fabric for skin, desk lamps for eyes, and a mop for hair) to disguise her. Throughout the movie, Boo repeatedly wanders off, causing many comedic situations for Mike and Sulley.

At one point, Sulley, under Mr. Waternoose's orders, roars in front of a robot 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, only to reveal he is in league with Randall. After he and Randall banish Sulley and Mike to the Himalayas, they proceed with extracting screams from Boo by using the Scream Extractor. However, Sulley arrives just in time to destroy 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 the 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 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 let Sulley fall to his demise, Boo manages to overcome her fear of him and attacks him with a baseball bat to save Sulley. After Mike and Sulley banish Randall through another door, disable it, and let it fall to the bottom shattering to pieces to ensure that he will never return, they return to and open Boo's door, only to realize that the power has gone out prompting Mike to make her laugh again, 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 go 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 thousands of children (including Boo) to the agents, who then turn on Waternoose and arrest him.

Immediately thereafter, Roz revealed to be Agent 00001 of the CDA, enters and decides that Boo's door is to be destroyed after Boo is safely returned home in order to ensure that she will never come back to the monster world again. She lets Sulley have five minutes to say goodbye. Sulley takes her into 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 a clownfish that looks like Nemo from Finding Nemo.

Boo and Sulley take a seemingly one last look at each other, then after Sulley closes the door, Boo runs up to it and opens it to surprise him, only to find her closet instead and Sulley nowhere to be seen. After her door is shredded, Sulley feels sad that he will probably 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.

## Television Appearances

### Monsters at Work

Boo does not make a physical appearance in Monsters at Work, but is indirectly mentioned in the pilot episode, as Mike is talking with Celia, she is the reason why Sulley and Mike initially got banned from Harryhausen's for life. Boo is also mentioned in the episodes "The Damaged Room" and "It's Laughter They're After".