Randall Boggs

Randall is an antagonist from Monstropolis in Kingdom Hearts III. He originated in the Disney/Pixar film 

He desires to get revenge on Sulley and Mike Wazowski for getting him fired from Monsters, Inc. and subsequently banished into a door.

Before Kingdom Hearts III
Randall worked at Monster's Inc for several years as a "scarer" - a monster who visits children at night to scare them so they could collect their screams to power Monstopolis. He competed with Sulley for being the top scarer. However, due to the increasing number of desensitized children, it became harder to scare them. Randall worked along side the company president Waternoose III to kidnap children and forcibly extract scream energy from them. However, he got careless one night and left the door to one of his victims unattended, allowing Boo to follow Sulley back to their world. Randall and Waternoose attempted to banish Sulley and his best friend Mike to a human world, but they were able to return thanks to quick thinking on their part. They rescued Boo, and sent Randall through a door to a "southern" location, where he was mistaken for an alligator and wahcked repeatedly with a shovel. The door used for it was sent through a shredder to keep him from coming back.

Kingdom Hearts III
Managing to escape "being turned into a wallet", Randall seethed with revenge, drawing the attention of Vanitas of the Organization. After explaining about how his world ran on the screams of children, Randall was offered assistance by Vanitas to get back for revenge against the duo who banished him; the dark being repaired the door by merging it with a dark corridor. ect

Appearance
Randall is a purple lizard-like monster with green eyes. He has two pairs of arms and two pairs of legs.

Personality
Randall is short-tempered and competitive.

Origin
Randall Boggs first appeared as an antagonist in the 2001 film Monsters, Inc., voiced by Steve Buscemi. He is a rival scarer at Monsters, Inc. with Sulley, but finds himself scoring less. Randall has constructed a "Scream Extractor", and tries to abduct a human child (Boo) as a conspiracy with the company's leader, Henry J. Waternoose, in order to gain company leadership.