Billy Crystal character Mike Wazowski (voice)
John Goodman character James 'Sulley' Sullivan (voice)
Helen Mirren character Dean Hardscrabble (voice)
Steve Buscemi character Randall Boggs (voice)
Peter Sohn character Scott 'Squishy' Squibbles (voice)
Joel Murray character Don Carlton (voice)
Aubrey Plaza character Claire Wheeler (voice)
Sean Hayes character Terri Perry (voice)
Dave Foley character Terry Perry (voice)
Charlie Day character Art (voice)
Alfred Molina character Professor Knight (voice)
Tyler Labine character Brock Pearson (voice)
Nathan Fillion character Johnny Worthington (voice)
Bobby Moynihan character Chet Alexander (voice)
Noah Johnston character Young Mike (voice)
Julia Sweeney character Ms. Squibbles (voice)
Bonnie Hunt character Karen Graves (voice)
John Krasinski character Frank McCay (voice)
Bill Hader character Referee (voice)
Beth Behrs character Carrie Williams (voice)
Bob Peterson character Roz (voice)
John Ratzenberger character Yeti (voice)
Lori Alan character Additional Voices (voice)
Carlos Alazraqui character Additional Voices (voice)
Jack Angel character Additional Voices (voice)
Bob Bergen character Additional Voices (voice)
Gregg Berger character Additional Voices (voice)
Rodger Bumpass character Additional Voices (voice)
Neil Campbell character Additional Voices (voice)
Frank Oz character Fungus (voice)
Ava Acres character Additional Children's Voices (voice)
Sherry Lynn character Additional Voices (voice)
Paul Lazenby character Monster (voice, uncredited)
Aramé Scott character Additional Children's Voices (voice)
Joseph John Schirle character Additional Children's Voices (voice)
Kristen Li character Additional Children's Voices (voice)
Davin Ransom character Additional Children's Voices (voice)
Raymond Ochoa character Additional Children's Voices (voice)
Calum John character Additional Children's Voices (voice)
Montse Hernandez character Additional Children's Voices (voice)
Mason Cook character Additional Children's Voices (voice)
Makenna Cowgill character Additional Children's Voices (voice)
Tyree Brown character Additional Children's Voices (voice)
Jack Bright character Additional Children's Voices (voice)
Isabella Acres character Additional Children's Voices (voice)
April Winchell character Additional Voices (voice)
Colette Whitaker character Additional Voices (voice)
Jim Ward character Additional Voices (voice)
Marcia Wallace character Additional Voices (voice)
David Theune character Additional Voices (voice)
Tara Strong character Additional Voices (voice)
Mindy Sterling character Additional Voices (voice)
Joel Spence character Additional Voices (voice)
Betsy Sodaro character Additional Voices (voice)
Patrick Seitz character Additional Voices (voice)
Dan Scanlon character Additional Voices (voice)
Jan Rabson character Additional Voices (voice)
Cristina Pucelli character Additional Voices (voice)
Jeff Pidgeon character Additional Voices (voice)
Dannah Feinglass Phirman character Additional Voices (voice)
Donovan Patton character Additional Voices (voice)
Bret 'Brook' Parker character Additional Voices (voice)
Colleen O'Shaughnessey character Additional Voices (voice)
Laraine Newman character Additional Voices (voice)
David Neher character Additional Voices (voice)
Pam Murphy character Additional Voices (voice)
Matthew Mercer character Additional Voices (voice)
Alec Medlock character Additional Voices (voice)
Allan McLeod character Additional Voices (voice)
Mickie McGowan character Additional Voices (voice)
Tricia McAlpin character Additional Voices (voice)
Mona Marshall character Additional Voices (voice)
Jason Marsden character Additional Voices (voice)
Danny Mann character Additional Voices (voice)
Dawnn Lewis character Additional Voices (voice)
Elissa Knight character Additional Voices (voice)
John Kassir character Additional Voices (voice)
Brandon Johnson character Additional Voices (voice)
Jess Harnell character Additional Voices (voice)
Mike Hanford character Additional Voices (voice)
Daniel Gerson character Additional Voices (voice)
Teresa Ganzel character Additional Voices (voice)
Donald Fullilove character Additional Voices (voice)
Andy Fischer-Price character Additional Voices (voice)
Keith Ferguson character Additional Voices (voice)
Bill Farmer character Additional Voices (voice)
Paul Eiding character Additional Voices (voice)
Greg Dykstra character Additional Voices (voice)
John Cygan character Additional Voices (voice)
Sean Conroy character Additional Voices (voice)
Patrick Carlyle character Additional Voices (voice)
Natalie Jane Dang character Additional Children's Voices (voice)
Gage Davenport character Additional Children's Voices (voice)
Ethan Louis Samuels DiSalvio character Additional Children's Voices (voice)
Faith Goblirsch character Additional Children's Voices (voice)
Brooke Klinger character Additional Children's Voices (voice)
Nikolas Michailidis character Additional Children's Voices (voice)
Marley Pearson character Additional Children's Voices (voice)
