Billy Crystal as Mike (voice)

John Goodman as Sullivan (voice)

Steve Buscemi as Randy (voice)

Helen Mirren as Dean Hardscrabble (voice)

Peter Sohn as Squishy (voice)

Joel Murray as Don (voice)

Sean Hayes as Terri (voice)

Dave Foley as Terry (voice)

Charlie Day as Art (voice)

Alfred Molina as Professor Knight (voice)

Tyler Labine as Greek Council VP (voice)

Nathan Fillion as Johnny (voice)

Aubrey Plaza as Greek Council President (voice)

Bobby Moynihan as Chet (voice)

Noah Johnston as Young Mike (voice)

Julia Sweeney as Ms. Squibbles (voice)

Bonnie Hunt as Mrs. Graves (voice)

John Krasinski as Frank McCay (voice)

Bill Hader as Referee / Slug (voice)

Beth Behrs as PNK Carrie (voice)

Bob Peterson as Roz (voice)

John Ratzenberger as Yeti (voice)

Lori Alan as Additional Voices (voice)

Carlos Alazraqui as Additional Voices (voice)

Jack Angel as Additional Voices (voice)

Bob Bergen as Additional Voices (voice)

Gregg Berger as Additional Voices (voice)

Rodger Bumpass as Additional Voices (voice)

Neil Campbell as Additional Voices (voice)

Patrick Carlyle as Additional Voices (voice)

Sean Conroy as Additional Voices (voice)

John Cygan as Additional Voices (voice)

Greg Dykstra as Additional Voices (voice)

Paul Eiding as Additional Voices (voice)

Jessica Evans as Additional Voices (voice)

Bill Farmer as Additional Voices (voice)

Keith Ferguson as Additional Voices (voice)

Andy Fischer-Price as Additional Voices (voice)

Donald Fullilove as Additional Voices (voice)

Teresa Ganzel as Additional Voices (voice)

Daniel Gerson as Additional Voices (voice)

Mike Hanford as Additional Voices (voice)

Jess Harnell as Additional Voices (voice)

Brandon Johnson as Additional Voices (voice)

John Kassir as Additional Voices (voice)

Elissa Knight as Additional Voices (voice)

Lindsay Lefler as Additional Voices (voice)

Dawnn Lewis as Additional Voices (voice)

Sherry Lynn as Additional Voices (voice)

Danny Mann as Additional Voices (voice)

Jason Marsden as Additional Voices (voice)

Mona Marshall as Additional Voices (voice)

Tricia McAlpin as Additional Voices (voice)

Mickie McGowan as Additional Voices (voice)

Allan McLeod as Additional Voices (voice)

Alec Medlock as Additional Voices (voice)

Matthew Mercer as Additional Voices (voice)

Pam Murphy as Additional Voices (voice)

David Neher as Additional Voices (voice)

Laraine Newman as Additional Voices (voice)

Colleen O'Shaughnessey as Additional Voices (voice)

Bret Parker as Additional Voices (voice)

Donovan Patton as Additional Voices (voice)

Dannah Feinglass Phirman as Additional Voices (voice)

Jeff Pidgeon as Additional Voices (voice)

Cristina Pucelli as Additional Voices (voice)

Jan Rabson as Additional Voices (voice)

Dan Scanlon as Additional Voices (voice)

Patrick Seitz as Additional Voices (voice)

Betsy Sodaro as Additional Voices (voice)

Joel Spence as Additional Voices (voice)

Mindy Sterling as Additional Voices (voice)

Tara Strong as Additional Voices (voice)

David Theune as Additional Voices (voice)

Marcia Wallace as Additional Voices (voice)

Jim Ward as Additional Voices (voice)

Colette Whitaker as Additional Voices (voice)

April Winchell as Additional Voices (voice)

Ava Acres as Additional Children's Voices (voice)

Isabella Acres as Additional Children's Voices (voice)

Casey Barden as Additional Children's Voices (voice)

Ileanna Bravos as Additional Children's Voices (voice)

Jack Bright as Additional Children's Voices (voice)

Tyree Brown as Additional Children's Voices (voice)

Mason Cook as Additional Children's Voices (voice)

Makenna Cowgill as Additional Children's Voices (voice)

Natalie Jane Dang as Additional Children's Voices (voice)

Gage Davenport as Additional Children's Voices (voice)

Ethan Louis Samuels DiSalvio as Additional Children's Voices (voice)

Clayton Drier as Additional Children's Voices (voice)

Tyler Ganus as Additional Children's Voices (voice)

Faith Goblirsch as Additional Children's Voices (voice)

Montse Hernandez as Additional Children's Voices (voice)

Calum John as Additional Children's Voices (voice)

Brooke Klinger as Additional Children's Voices (voice)

Gia Michailidis as Additional Children's Voices (voice)

Nikolas Michailidis as Additional Children's Voices (voice)

Madison Rothschild as Additional Children's Voices (voice)

Raymond Ochoa as Additional Children's Voices (voice)

Marley Pearson as Additional Children's Voices (voice)

Alexis Poindexter as Additional Children's Voices (voice)

Davin Ransom as Additional Children's Voices (voice)

Samantha Sadoff as Additional Children's Voices (voice)

Kristen Li as Additional Children's Voices (voice)

Joseph John Schirle as Additional Children's Voices (voice)

Aramé Scott as Additional Children's Voices (voice)

Erica Teeple as Additional Children's Voices (voice)

Khiara Symone Threets as Additional Children's Voices (voice)