Besetzung

• Billy Crystal — Mike Wazowski
• John Goodman — James P. Sullivan
• Steve Buscemi — Randy Boggs
• Helen Mirren — Rectora Hardscrabble
• Peter Sohn — Scott 'Squishy' Squibbles
• Joel Murray — Don Carlton (voice)
• Sean Hayes — Terri Perry (voice)
• Dave Foley — Terry Perry (voice)
• Charlie Day — Art (voice)
• Alfred Molina — Professor Knight (voice)
• Nathan Fillion — Johnny Worthington (voice)
• Tyler Labine — Brock Pearson (voice)
• Aubrey Plaza — Claire Wheeler (voice)
• Julia Sweeney — Ms. Squibbles (voice)
• John Krasinski — “Frightening” Frank McCay (voice)
• Bobby Moynihan — Chet Alexander (voice)
• Noah Johnson — Young Mike / Bob (voice)
• Bonnie Hunt — Karen Graves (voice)
• Bill Hader — Referee / Slug (voice)
• Beth Behrs — Carrie Williams (voice)
• Bob Peterson — Roz (voice)
• John Ratzenberger — Yeti (voice)
• Frank Oz — Fungus (voice)
• Ava Acres — Additional Children's Voices (voice)
• Joseph John Schirle — Additional Children's Voices (voice)
• Kristen Li — Additional Children's Voices (voice, as Kristen Sarkisian)
• Raymond Ochoa — Additional Children's Voices (voice)
• Mason Cook — Additional Children's Voices (voice)
• Tyree Brown — Additional Children's Voices (voice)
• Isabella Acres — Additional Children's Voices (voice)
• April Winchell — Additional Voices (voice)
• Colette Whitaker — Additional Voices (voice)
• Jim Ward — Additional Voices (voice, as James Kevin Ward)
• David Theune — Additional Voices (voice)
• Joel Spence — Additional Voices (voice)
• Betsy Sodaro — Additional Voices (voice)
• Patrick Seitz — Additional Voices (voice)
• Dan Scanlon — Additional Voices (voice)
• Jan Rabson — Additional Voices (voice)
• Cristina Pucelli — Additional Voices (voice)
• Donovan Patton — Additional Voices (voice)
• Colleen O'Shaughnessey — Additional Voices (voice)
• David Neher — Additional Voices (voice)
• Pam Murphy — Additional Voices (voice)
• Matthew Mercer — Additional Voices (voice)
• Alec Medlock — Additional Voices (voice)
• Allan McLeod — Additional Voices (voice)
• Tricia McAlpin — Additional Voices (voice)
• Mona Marshall — Additional Voices (voice)
• Dawnn Lewis — Additional Voices (voice)
• John Kassir — Additional Voices (voice)
• Brandon Johnson — Additional Voices (voice)
• Jess Harnell — Additional Voices (voice)
• Mike Hanford — Additional Voices (voice)
• Donald Fullilove — Additional Voices (voice)
• Andy Fischer-Price — Additional Voices (voice)
• Keith Ferguson — Additional Voices (voice)
• Bill Farmer — Additional Voices (voice)
• Paul Eiding — Additional Voices (voice)
• Greg Dykstra — Additional Voices (voice)
• John Cygan — Additional Voices (voice)
• Sean Conroy — Additional Voices (voice)
• Patrick Carlyle — Additional Voices (voice)
• Neil Campbell — Additional Voices (voice)
• Gregg Berger — Additional Voices (voice)
• Jack Angel — Additional Voices (voice)
• Sherry Lynn — Additional Voices (voice)
• Jeff Pidgeon — Additional Voices (voice)
• Daniel Gerson — Additional Voices (voice)
• Marcia Wallace — Additional Voices (voice)
• Tara Strong — Additional Voices (voice)
• Mindy Sterling — Additional Voices (voice)
• Laraine Newman — Additional Voices (voice)
• Jason Marsden — Additional Voices (voice)
• Danny Mann — Additional Voices (voice)
• Teresa Ganzel — Additional Voices (voice)
• Rodger Bumpass — Additional Voices (voice)
• Bob Bergen — Additional Voices (voice)
• Carlos Alazraqui — Additional Voices (voice)
• Lori Alan — Additional Voices (voice)
• Paul Lazenby — Monster (voice, uncredited)
• Phil Proctor — Additional Voices (voice, uncredited)