- Alfred Molina - Professor Knight (voice)
- Tyler Labine - Greek Council VP (voice)
- Nathan Fillion - Johnny (voice)
- Aubrey Plaza - Greek Council President (voice)
- Bobby Moynihan - Chet (voice)
- Noah Johnston - Young Mike (voice)
- Julia Sweeney - Ms. Squibbles (voice)
- Bonnie Hunt - Mrs. Graves (voice)
- John Krasinski - Frank McCay (voice)
- Bill Hader - Referee / Slug (voice)
- Beth Behrs - PNK Carrie (voice)
- Bob Peterson - Roz (voice)
- John Ratzenberger - Yeti (voice)
- Lori Alan - Additional Voices (voice)
- Carlos Alazraqui - Additional Voices (voice)
- Jack Angel - Additional Voices (voice)
- Bob Bergen - Additional Voices (voice)
- Gregg Berger - Additional Voices (voice)
- Rodger Bumpass - Additional Voices (voice)
- Neil Campbell - Additional Voices (voice)
- Patrick Carlyle - Additional Voices (voice)
- Sean Conroy - Additional Voices (voice)
- John Cygan - Additional Voices (voice)
- Greg Dykstra - Additional Voices (voice)
- Paul Eiding - Additional Voices (voice)
- Jessica Evans - Additional Voices (voice)
- Bill Farmer - Additional Voices (voice)
- Keith Ferguson - Additional Voices (voice)
- Andy Fischer-Price - Additional Voices (voice)
- Donald Fullilove - Additional Voices (voice)
- Teresa Ganzel - Additional Voices (voice)
- Daniel Gerson - Additional Voices (voice)
- Mike Hanford - Additional Voices (voice)
- Jess Harnell - Additional Voices (voice)
- Brandon Johnson - Additional Voices (voice)
- John Kassir - Additional Voices (voice)
- Elissa Knight - Additional Voices (voice)
- Lindsay Lefler - Additional Voices (voice)
- Dawnn Lewis - Additional Voices (voice)
- Sherry Lynn - Additional Voices (voice)
- Danny Mann - Additional Voices (voice)
- Jason Marsden - Additional Voices (voice)
- Mona Marshall - Additional Voices (voice)
- Tricia McAlpin - Additional Voices (voice)
- Mickie McGowan - Additional Voices (voice)
- Allan McLeod - Additional Voices (voice)
- Alec Medlock - Additional Voices (voice)
- Matthew Mercer - Additional Voices (voice)
- Pam Murphy - Additional Voices (voice)
- David Neher - Additional Voices (voice)
- Laraine Newman - Additional Voices (voice)
- Colleen O'Shaughnessey - Additional Voices (voice)
- Bret Parker - Additional Voices (voice)
- Donovan Patton - Additional Voices (voice)
- Dannah Feinglass Phirman - Additional Voices (voice)
- Jeff Pidgeon - Additional Voices (voice)
- Cristina Pucelli - Additional Voices (voice)
- Jan Rabson - Additional Voices (voice)
- Dan Scanlon - Additional Voices (voice)
- Patrick Seitz - Additional Voices (voice)
- Betsy Sodaro - Additional Voices (voice)
- Joel Spence - Additional Voices (voice)
- Mindy Sterling - Additional Voices (voice)
- Tara Strong - Additional Voices (voice)
- David Theune - Additional Voices (voice)
- Marcia Wallace - Additional Voices (voice)
- Jim Ward - Additional Voices (voice)
- Colette Whitaker - Additional Voices (voice)
- April Winchell - Additional Voices (voice)
- Ava Acres - Additional Children's Voices (voice)
- Isabella Acres - Additional Children's Voices (voice)
- Casey Barden - Additional Children's Voices (voice)
- Ileanna Bravos - Additional Children's Voices (voice)
- Jack Bright - Additional Children's Voices (voice)
- Tyree Brown - Additional Children's Voices (voice)
- Mason Cook - Additional Children's Voices (voice)
- Makenna Cowgill - Additional Children's Voices (voice)
- Natalie Jane Dang - Additional Children's Voices (voice)
- Gage Davenport - Additional Children's Voices (voice)
- Ethan Louis Samuels DiSalvio - Additional Children's Voices (voice)
- Clayton Drier - Additional Children's Voices (voice)
- Tyler Ganus - Additional Children's Voices (voice)
- Faith Goblirsch - Additional Children's Voices (voice)
- Montse Hernandez - Additional Children's Voices (voice)
- Calum John - Additional Children's Voices (voice)
- Brooke Klinger - Additional Children's Voices (voice)
- Gia Michailidis - Additional Children's Voices (voice)
- Nikolas Michailidis - Additional Children's Voices (voice)
- Madison Rothschild - Additional Children's Voices (voice)
- Raymond Ochoa - Additional Children's Voices (voice)
- Marley Pearson - Additional Children's Voices (voice)
- Alexis Poindexter - Additional Children's Voices (voice)
- Davin Ransom - Additional Children's Voices (voice)
- Samantha Sadoff - Additional Children's Voices (voice)
- Kristen Li - Additional Children's Voices (voice)
- Joseph John Schirle - Additional Children's Voices (voice)
- Aramé Scott - Additional Children's Voices (voice)
- Erica Teeple - Additional Children's Voices (voice)
- Khiara Symone Threets - Additional Children's Voices (voice)
- Manuel Neuer - Frank McCay (German voice)
- Kelsey Mann
- Dan Scanlon
- Amanda Deering Jones
- Daniel Gerson
- Robert L. Baird
- Louis Gonzales
- Doc Kane
- Kelsey Mann
- Dan Scanlon
- Andrew Stanton
- Lee Unkrich
- John Lasseter
- Kori Rae
- Pete Docter
- Kevin Reher
- Randy Newman
- E.J. Holowicki
- Michael Silvers
- Dennie Thorpe
- Jana Vance
- Bruno Coon
Billy Crystal interpreta a Mike (voice) en la película.
John Goodman interpreta a Sullivan (voice) en la película.
Steve Buscemi interpreta a Randy (voice) en la película.
Helen Mirren interpreta a Dean Hardscrabble (voice) en la película.
Peter Sohn hace el papel de Squishy (voice).
Joel Murray interpreta a Don (voice) en la película.
Sean Hayes interpreta a Terri (voice) en la película.
Dave Foley interpreta a Terry (voice) en la película.
Charlie Day interpreta a Art (voice) en la película.
Alfred Molina interpreta a Professor Knight (voice) en la película.
Tyler Labine interpreta a Greek Council VP (voice) en la película.
Nathan Fillion interpreta a Johnny (voice) en la película.
Aubrey Plaza hace el papel de Greek Council President (voice).
Bobby Moynihan hace el papel de Chet (voice).
Noah Johnston interpreta a Young Mike (voice) en la película.
Julia Sweeney hace el papel de Ms. Squibbles (voice).
Bonnie Hunt hace el papel de Mrs. Graves (voice).
John Krasinski interpreta a Frank McCay (voice) en la película.
Bill Hader interpreta a Referee / Slug (voice) en la película.
Beth Behrs hace el papel de PNK Carrie (voice).
Bob Peterson interpreta a Roz (voice) en la película.
John Ratzenberger hace el papel de Yeti (voice).
Lori Alan interpreta a Additional Voices (voice) en la película.
Carlos Alazraqui interpreta a Additional Voices (voice) en la película.
Jack Angel hace el papel de Additional Voices (voice).
Bob Bergen interpreta a Additional Voices (voice) en la película.
Gregg Berger hace el papel de Additional Voices (voice).
Rodger Bumpass hace el papel de Additional Voices (voice).
Neil Campbell interpreta a Additional Voices (voice) en la película.
Patrick Carlyle hace el papel de Additional Voices (voice).
Sean Conroy interpreta a Additional Voices (voice) en la película.
John Cygan hace el papel de Additional Voices (voice).
Greg Dykstra hace el papel de Additional Voices (voice).
Paul Eiding hace el papel de Additional Voices (voice).
Jessica Evans interpreta a Additional Voices (voice) en la película.
Bill Farmer interpreta a Additional Voices (voice) en la película.
Keith Ferguson interpreta a Additional Voices (voice) en la película.
Andy Fischer-Price hace el papel de Additional Voices (voice).
Donald Fullilove interpreta a Additional Voices (voice) en la película.
Teresa Ganzel interpreta a Additional Voices (voice) en la película.
Daniel Gerson interpreta a Additional Voices (voice) en la película.
Mike Hanford hace el papel de Additional Voices (voice).
Jess Harnell interpreta a Additional Voices (voice) en la película.
Brandon Johnson interpreta a Additional Voices (voice) en la película.
John Kassir interpreta a Additional Voices (voice) en la película.
Elissa Knight hace el papel de Additional Voices (voice).
Lindsay Lefler hace el papel de Additional Voices (voice).
Dawnn Lewis interpreta a Additional Voices (voice) en la película.
Sherry Lynn interpreta a Additional Voices (voice) en la película.
Danny Mann interpreta a Additional Voices (voice) en la película.
Jason Marsden interpreta a Additional Voices (voice) en la película.
Mona Marshall hace el papel de Additional Voices (voice).
Tricia McAlpin interpreta a Additional Voices (voice) en la película.
Mickie McGowan interpreta a Additional Voices (voice) en la película.
Allan McLeod hace el papel de Additional Voices (voice).
Alec Medlock interpreta a Additional Voices (voice) en la película.
Matthew Mercer interpreta a Additional Voices (voice) en la película.
Pam Murphy hace el papel de Additional Voices (voice).
David Neher interpreta a Additional Voices (voice) en la película.
Laraine Newman interpreta a Additional Voices (voice) en la película.
Colleen O'Shaughnessey hace el papel de Additional Voices (voice).
Bret Parker interpreta a Additional Voices (voice) en la película.
Donovan Patton interpreta a Additional Voices (voice) en la película.
Dannah Feinglass Phirman hace el papel de Additional Voices (voice).
Jeff Pidgeon hace el papel de Additional Voices (voice).
Cristina Pucelli interpreta a Additional Voices (voice) en la película.
Jan Rabson hace el papel de Additional Voices (voice).
Dan Scanlon interpreta a Additional Voices (voice) en la película.
Patrick Seitz interpreta a Additional Voices (voice) en la película.
Betsy Sodaro hace el papel de Additional Voices (voice).
Joel Spence hace el papel de Additional Voices (voice).
Mindy Sterling interpreta a Additional Voices (voice) en la película.
Tara Strong hace el papel de Additional Voices (voice).
David Theune interpreta a Additional Voices (voice) en la película.
Marcia Wallace interpreta a Additional Voices (voice) en la película.
Jim Ward interpreta a Additional Voices (voice) en la película.
Colette Whitaker interpreta a Additional Voices (voice) en la película.
April Winchell interpreta a Additional Voices (voice) en la película.
Ava Acres interpreta a Additional Children's Voices (voice) en la película.
Isabella Acres interpreta a Additional Children's Voices (voice) en la película.
Casey Barden interpreta a Additional Children's Voices (voice) en la película.
Ileanna Bravos interpreta a Additional Children's Voices (voice) en la película.
Jack Bright interpreta a Additional Children's Voices (voice) en la película.
Tyree Brown interpreta a Additional Children's Voices (voice) en la película.
Mason Cook interpreta a Additional Children's Voices (voice) en la película.
Makenna Cowgill interpreta a Additional Children's Voices (voice) en la película.
Natalie Jane Dang interpreta a Additional Children's Voices (voice) en la película.
Gage Davenport hace el papel de Additional Children's Voices (voice).
Ethan Louis Samuels DiSalvio interpreta a Additional Children's Voices (voice) en la película.
Clayton Drier hace el papel de Additional Children's Voices (voice).
Tyler Ganus interpreta a Additional Children's Voices (voice) en la película.
Faith Goblirsch interpreta a Additional Children's Voices (voice) en la película.
Montse Hernandez interpreta a Additional Children's Voices (voice) en la película.
Calum John hace el papel de Additional Children's Voices (voice).
Brooke Klinger interpreta a Additional Children's Voices (voice) en la película.
Gia Michailidis interpreta a Additional Children's Voices (voice) en la película.
Nikolas Michailidis interpreta a Additional Children's Voices (voice) en la película.
Madison Rothschild hace el papel de Additional Children's Voices (voice).
Raymond Ochoa interpreta a Additional Children's Voices (voice) en la película.
Marley Pearson hace el papel de Additional Children's Voices (voice).
Alexis Poindexter interpreta a Additional Children's Voices (voice) en la película.
Davin Ransom interpreta a Additional Children's Voices (voice) en la película.
Samantha Sadoff hace el papel de Additional Children's Voices (voice).
Kristen Li interpreta a Additional Children's Voices (voice) en la película.
Joseph John Schirle interpreta a Additional Children's Voices (voice) en la película.
Aramé Scott interpreta a Additional Children's Voices (voice) en la película.
Erica Teeple interpreta a Additional Children's Voices (voice) en la película.
Khiara Symone Threets interpreta a Additional Children's Voices (voice) en la película.
Manuel Neuer interpreta a Frank McCay (German voice) en la película.
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