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)
Stephen Tobolowsky Bigmouth Executive / Forge (voice)
Greg Kinnear Ratchet (voice)
Harland Williams Lug (voice)
Jim Broadbent Madame Gasket (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
Carlos Saldanha Co-Director
Paula Abdul Watch (voice)
Sondra James Additional Voices
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
Chris Meledandri Executive Producer
Natasha Leonnet Digital Color Timer
Darin De Paul Additional Voices
Curtis Lindersmith Digital Intermediate Editor
Bob Camp Storyboard Artist
Bruce Winant Additional Voices / ADR Loop Group
Will Denton Young Rodney (voice)
Tom Carlson Music Editor
William Joyce Producer, Production Design
Marshall Efron Lamppost / Toilet Bot / Bass Drum / Microphone
Marissa Littlefield Dialogue Editor
Paul Downs Animation
Mike Thurmeier Supervising Animator
Moroni Taylor Storyboard Artist
Nicholas Renbeck Supervising ADR Editor, Supervising Dialogue Editor
Tim Gomillion Sound Recordist
Sean Garnhart Sound Designer, Diesel (uncredited)
Brett Hoffman Script Coordinator
James Palumbo First Assistant Editor
Chingy DJ Robot (uncredited)
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