John Goodman Layton T. Montgomery (voice)
Renée Zellweger Vanessa Bloome (voice)
Ray Liotta Ray Liotta (voice)
Matthew Broderick Adam Flayman (voice)
Kathy Bates Janet Benson (voice)
Sting Sting (voice)
Patrick Warburton Ken (voice)
Chris Rock Mooseblood (voice)
Hans Zimmer Executive Music Producer
Jim Cummings Narrator / Graduation Announcer (voice)
John DiMaggio Janitor / Bailiff (voice)
Megan Mullally Trudy (voice)
Will Files Supervising Sound Editor, Sound Designer
Mark Swift Co-Producer
Michael Richards Bud Ditchwater (voice)
Conrad Vernon Freddy (voice)
David Herman Buzz / Bob Bumble / Pilot (voice)
Tress MacNeille Jeanette Chung / Mother / Cow (voice)
Rip Torn Lou Lo Duca (voice)
Oprah Winfrey Judge Bumbleton (voice)
Larry Miller Buzzwell (voice)
J.J. George Music Editor
Larry King Bee Larry King (voice)
Barry Levinson Martin Benson (voice)
Rupert Gregson-Williams Music
Jennifer Kluska Storyboard Artist
Brian Hopkins Sandy Shrimpkin / TSA Agent (voice)
Christi Soper Hilt Casting Associate
Jerry Seinfeld Producer, Barry B. Benson (voice), Writer
Anna Behlmer Sound Mixer
Mo Henry Negative Cutter
Sean Bishop Ladybug (voice)
David C. Lawson Director of Photography
Thomas J. O'Connell ADR Mixer
Matt Patterson Sound Recordist
Alex McDowell Production Design
Carol Leifer Press Person #1 (voice)
Andy Nelson Sound Mixer
Michael Silvers Supervising Sound Editor
Frank Rinella Foley Mixer
Tom Papa Splitz / Klauss Vanderhayden (voice)
Simon Otto Animation
Steve Slanec ADR Editor
Randy Thom Sound Designer
David Pimentel Hector (voice)
Simon J. Smith Director, Truck Driver / Chet (voice)
Spike Feresten Writer
Rick Canelli ADR Recordist
Steve Hickner Director
Dennie Thorpe Foley Artist
Ellen Heuer Foley Artist
Jana Vance Foley Artist
David G. Derrick Jr. Story Artist
Andy Robin Jock #2 (voice), Writer
Sean England Foley Recordist
Luke Dunn Gielmuda Foley Supervisor
Kyrsten Mate Sound Effects Editor
Leslee Feldman Casting
Mario Joyner Jackson (voice)
Jeff Altman Uncle Carl (voice)
Christina Steinberg Producer
Scott Guitteau Sound Effects Editor
Leigh French ADR Voice Casting
David Yanover Post Production Supervisor
Gabe Hordos Art Department Coordinator
Seth Engstrom Conceptual Design
Blake R. Cornett Sound Recordist
Barry Marder Waterbug (voice), Writer
Alan Meyerson Scoring Mixer
Wayne Hellinger Post Production Coordinator
Kevin Andrus Animation
Steve Cunningham Animation