Roz

Roz is a character from Monsters, Inc. She is voiced by Bob Peterson.

Monsters, Inc.
She is a slug-looking monster in the movie who appears to be the key master and manager for Scare Floor F, having access to all the keys to children's closet doors at Monsters, Inc.

Roz seems to dislike Mike Wazowski for never filing his paperwork correctly, repeatedly reminding him about it as a running gag in the movie.

In the end of the film, it turns out that Roz is Agent #001 of the CDA. She gives Mike and Sulley five minutes to return Boo back to her room before anything happens to her. After Boo's door is shredded, Roz requests that she doesn't want to see any paperwork about Boo's invasion.

She is not seen again for the rest of the film, but she has frequently appeared in the film outtakes for comic relief. One is when she unexpectedly pops out of the toilet, startling Sulley, who has opened the bathroom door to get Boo. Another is when the CDA agents surprisingly find her taking place of another monster, George Sanderson, after he gets his fur shaved off and is showered. The third is when Sulley tries to show Boo that the closet is empty, only to find it occupied by Roz, who says "Guess who!" In all three outtakes, Roz makes her infamous laugh, "Ahh-haa-haa!" and sends others bursting into laughter.

Trivia

 * She is one of the few female characters voiced by a male, as Bob Peterson is male.
 * Roz bears some resemblance to Muriel Finster from the show Recess, since the two are both portrayed as elderly females that sport squinty eyes, horn-rimmed glasses, and grouchy demeanors.