Sullivan (voice)
Mike (voice)
Boo (voice)
Randall (voice)
Waternoose (voice)
Celia (voice)
Roz (voice)
Yeti (voice)
Jeff Fungus (voice)
Needleman / Smitty (voice)
Floor Manager (voice)
Flint (voice)
Bile (voice)
George (voice)
Additional Voices (voice)
Rex (voice) (uncredited)
James Sulley Sullivan (voice)
Dean Hardscrabble (voice)
Scott Squishy Squibbles (voice)
Don Carlton (voice)
Terri Perry (voice)
Terry Perry (voice)
Art (voice)
Professor Knight (voice)
Brock Pearson (voice)
Johnny Worthington (voice)
Claire Wheeler (voice)
Chet Alexander (voice)
Young Mike (voice)
Ms. Squibbles (voice)
Frank McCay (voice)
Referee / Slug (voice)
Carrie Williams (voice)
Additional Childrens Voices (voice)
Monster (voice, uncredited)
Additional Voices(voice)