Halle Berry Cappy (voice)
Ewan McGregor Rodney Copperbottom (voice)
Natasha Lyonne Loretta Geargrinder (voice)
Jennifer Coolidge Aunt Fanny (voice)
Stanley Tucci Herb Copperbottom (voice)
James Earl Jones Voice Box at Hardware Store (voice)
Robin Williams Fender (voice)
Paul Giamatti Tim the Gate Guard (voice)
Dianne Wiest Mrs. Copperbottom (voice)
Drew Carey Crank (voice)
Greg Kinnear Ratchet (voice)
Stephen Tobolowsky Bigmouth Executive / Forge (voice)
Jim Broadbent Madame Gasket (voice)
Harland Williams Lug (voice)
Arun Ram-Mohan Lighting Artist
Dan Hedaya Mr. Gunk (voice)
Randy Jackson Watch #2 (voice) (uncredited)
Mel Brooks Bigweld (voice)
Amanda Bynes Piper (voice)
Colette D. Dahanne ADR Mixer
Alan Rosenberg Jack Hammer (voice)
Jay Leno Fire Hydrant (voice)
David Lindsay-Abaire Screenplay, Story
Peter de Sève Character Designer
Gary Burritt Negative Cutter
Sondra James Additional Voices
Carlos Saldanha Co-Director
Paula Abdul Watch (voice)
Dann Fink Additional Voices
Marko Costanzo Foley Artist
Johnny Gidcomb ADR Voice Casting
Chris Wedge Director, Wonderbot / Phone Booth (voice)
John Powell Original Music Composer
Brian Scott McFadden Trashcan Bot (voice)
Derek Casari ADR Engineer
Al Roker Mailbox (voice)
Terry Bradshaw Broken Arm Bot (voice)
James Brown Diesel (archive footage) (uncredited)
Jim Passon Color Timer
Damien Fahey Stage Announcer (voice)
Paul Urmson Sound Effects Designer, Diesel (uncredited)
Wyatt Sprague Sound Effects Editor
John C. Donkin Producer
David Lucarelli ADR Recordist
Jackie Hoffman Water Cooler (voice)
Pete Anthony Conductor
Darin De Paul Additional Voices
Chris Meledandri Executive Producer
Natasha Leonnet Digital Color Timer
Curtis Lindersmith Digital Intermediate Editor
Bob Camp Storyboard Artist
Bruce Winant Additional Voices / ADR Loop Group
Tom Carlson Music Editor
William Joyce Producer, Production Design
Nicholas Renbeck Supervising ADR Editor, Supervising Dialogue Editor
Marshall Efron Lamppost / Toilet Bot / Bass Drum / Microphone
Marissa Littlefield Dialogue Editor
Brett Hoffman Script Coordinator
Mike Thurmeier Supervising Animator
Paul Downs Animation
Moroni Taylor Storyboard Artist
Tim Gomillion Sound Recordist
Sean Garnhart Sound Designer, Diesel (uncredited)
James Palumbo First Assistant Editor
Chingy DJ Robot (uncredited)
Will Denton Young Rodney (voice)
Jeannine Berger Post Production Supervisor
Enrico Casarosa Storyboard Artist
Steve Martino Art Direction
Jansen Panettiere Younger Rodney (voice)
Babaloo Mandel Screenplay
Galen T. Chu Lead Animator