<P> Boo (voiced by Mary Gibbs) is a 2 - year - old human girl who becomes Sulley and Mike's friend . </P> <P> During Randall's secret late - night work on the Scare Floor, Boo gets into the factory abd Sulley tries various attempts to get her back, eventually placing her inside a duffle bag . When Sulley brings this up with Mike at Harryhauser's, Boo gets out and frightens the patrons; the CDA have to "decontaminate" the restaurant . While Mike and Sulley are at home, they discover that the girl is not toxic after all . Sulley quickly grows attached to the girl and names her "Boo". The next day, they smuggle her into the factory disguised as a child of one of Sulley's relatives, and Mike attempts to return her through her door . Randall tries to kidnap Boo, but kidnaps Mike by mistake . When Boo was brought into the simulation room after Mike and Sulley escaped from Randall, she ended up severely frightened by Sulley's roar . When Mike and Sulley tried to return Boo to her home, Mr. Waternoose had Mike and Sulley exiled to the Himalayas . Sulley returns to the factory and rescues Boo from Randall's Scream Extractor . During the chase through the large storage vault, Boo's laughter ends up causing all the doors to operate . Eventually, Boo gets over being afraid of Randall, and helps to defeat him . Sulley and Mike are able to access Boo's door, but Mr. Waternoose and the CDA send it back to the Scare Floor . Mike distracts the CDA, while Sulley escapes with Boo and her door, although Waternoose follows . The CDA's undercover leader is revealed to be Roz, and she allows Sulley and Mike 5 minutes to return Boo to her world . Once Sulley and Mike have returned Boo to her room, her door is put through the shredder . Sometime later, Mike takes Sulley aside revealing he has rebuilt Boo's door requiring only one more piece which Sulley had taken as a memento, the one taped to his clipboard . Sulley inserts the last piece, reactivates the door and enters to find Boo there . </P> <P> Henry James Waternoose (voiced by James Coburn) is a five - eyed humanoid crustacean - like monster in Monsters, Inc . He is the CEO of Monsters, Inc . The company has been in Waternoose's family for 3 generations as he had inherited the company from his father at the age of 142 . Waternoose also previously had a mentoring relationship with Sulley . </P> <P> Waternoose is first seen where he reminds Thaddeus Bile and the other trainees about the dangers of a human child getting into Monstropolis after Thaddeus left the door opened . He has been impressed with Sulley's progress . However, Mr. Waternoose is distraught to learn that the impending energy crisis is increasing, due to many children being desensitized and being unable to be scared by monsters, which might put the company on the verge of being shut down . </P>

Who does the voice of waternoose in monsters inc