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."

Disney Characters introduced in Kingdom Hearts Union χ: Sultan • Samson • Vanellope von Schweetz • Fix-It Felix Jr. • Sergeant Calhoun • King Candy • Sour Bill • Cy-Bugs • Hero's Duty Troops Monsters, Inc.: James P. Sullivan • Mike Wazowski • Boo • Henry J. Waternoose III • Randall Boggs • Fungus • Roz • Celia Mae • Needleman and Smitty • Flint • Thaddeus Bile • Jerry • George Sanderson • Charlie Proctor • Child Detection Agency • Sushi Chef • Tony • Josh Rivera • Pete Ward • Waxford • Theodore Pauley • Lanky Schmidt • Yeti

Peter Pan: Tinker Bell • Peter Pan • Captain Hook • Wendy • Nana • Smee • John Darling • Slightly • Holiday Tinker Bell • Topaz Tinker Bell • Captain Pan 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. Monsters, Inc.: Laugh Factory • The Art of Monsters, Inc. • Monsters (Original Treatment) • Monsters, Inc. 2 (Circle 7 Screenplay). • The Art of Monsters University • The Science Behind Pixar • Pixar in a Box • Oozma Kappa • Roar Omega Roar • Jaws Theta Chi • Slugma Slugma Kappa • Eta Hiss Hiss • Python Nu Kappa • Scare Games Video Games: Monsters, Inc. • Monsters, Inc. Scream Arena • Monsters, Inc. Scream Team • Monsters, Inc. Scream Team Training • Mike's Monstrous Adventure • Disney Universe • Monsters, Inc. Run • Disney Infinity • LEGO The Incredibles • Kingdom Hearts III • Disney Emoji Blitz • Disney Heroes: Battle Mode

Alice in Wonderland: Alice • Mad Hatter • March Hare • Dormouse • White Rabbit • Cheshire Cat • Tweedle Dum and Tweedle Dee • Queen of Hearts • King of Hearts • Caterpillar • Dinah • Oysters Big Hero 6: Hiro • Baymax • Fred • Wasabi • Honey Lemon • Go Go Tomago • Tadashi Hamada • Yokai • Mochi Disney Characters introduced in Kingdom Hearts χ: Mad Hatter • March Hare • Razoul • Royal Guards • Maurice • Gaston

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. Sleeping Beauty: Aurora • Phillip • Maleficent • Flora • Fauna • Merryweather • Diablo • Samson • King Stefan • Goon • Owl • Rabbit Beauty and the Beast: Belle • The Beast • Lumiere • Cogsworth • Mrs. Potts • Chip • Gaston • Enchantress • Winter Belle • Fancy Beast • Bookworm Belle • Magical Enchantress However, Boo could be reconsidered to appear in the series, possibly Season 2 in the near future rejoining Sulley and Mike again on their adventures, but the motion between the two monsters will change as she enters once again. [2] [3]

Boo and Sulley take 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. Cinderella: Cinderella • Jaq and Gus • Prince Charming • Fairy Godmother • Lady Tremaine • Lucifer • Suzy • Perla • Bruno

Baby Teddy

Lilo & Stitch: Stitch • Lilo • Jumba • Scrump • Angel • Shaved Ice Stitch • Rainbow Stitch • Nani Pelekai Boo is a nauseatingly adorable 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!", "Ew" 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 doesn't need help. Tangled: Rapunzel • Pascal • Flynn Rider • Maximus • Tiara Rapunzel • Mother Gothel • Wedding Maximus • Baby Rapunzel Beauty and the Beast: Belle • Maurice • Chip Potts • Mrs. Potts • Gaston • LeFou • FrouFrou • Chapeau • Plumette • Beast • Cogsworth • Lumiere • The Enchantress The Little Mermaid: Ariel • Flounder • Sebastian • Ursula • King Triton • Prince Eric • Wedding Ariel • Vanessa • Flotsam • Amethyst Ursula • Ruby Ariel