Monsters Inc 2: Laugh Factory

Monsters Inc 2: Laugh Factory is the real sequel to Monsters Inc (2001)

Plot
15 years have passed since Monsters Inc and everything is always going swimmingly at Monsters Inc. BUT it's revealed Randall Boggs had survived his encounter with the hillbillys and found a way out of the human world to seek REVENGE on Sulley and Mike. Also Henry Jay Waternoose 3 had also escaped from jail!

Cast
John Goodman as Sulley

Bill Crystal as Michael Wazoski

Mandy Moore as Boo(Adult)

Steve Buscemi as Randall Boggs (Main Antagonist)

Kelsey Grammer as Henry J Waternoose III (Secondary Antagonist) Kelsey Grammer replaces Mr Waternoose with his voice because James Coburn has died

Jenefier Tilly as Celia Mae- In the end she marries Mike

Bob Peterson as Roz

John Ratzenberger as Yeti- He comes back to the monster world to be in charge of the mail room again.

Frank Oz as Jeff Fungus

Mark Wahlberg as Smitty and Needleman- Mark Whalberg replaces Daniel Gerson because he died.

David Beron as Scott Scary Squibbles a comedian at Monsters Inc

Joel Murray as Don Carlton

Sean Hayes and Dave Foley as Terri and Terry Perry

Charlie Day as ART

Nathan Foley as Johnny Jay Worthington III- he also teams up with Randall and Mr Waternoose for revenge

Bobby Moynihan as Chet Alexander- he also teams up with Randall Boggs.