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