The Simpsons/Monsters, Inc.

Homer as Sulley

Bart as Mike

Laura Powers as Celia

Mr Burns as Randall

Ned Flanders as George Sanderson

Sideshow Bob as Mr Waternoose

Maggie as Boo

Waylon Smithers as Fungus

Principle Skinner as Jerry

Krusty The Clown as Rivera

Jimbo as Sid Phillips(Toy Story)

Moe as Harryhausen

Apu as Tony

Barney as Ricky

Kang & Kodos as Needleman & Smitty