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