Halle Berry Cappy (voice)
Ewan McGregor Rodney Copperbottom (voice)
Stanley Tucci Herb Copperbottom (voice)
Paul Giamatti Tim the Gate Guard (voice)
Robin Williams Fender (voice)
Jim Broadbent Madame Gasket (voice)
Jennifer Coolidge Aunt Fanny (voice)
Natasha Lyonne Loretta Geargrinder (voice)
Drew Carey Crank (voice)
Chris Wedge Director, Wonderbot / Phone Booth (voice)
Jay Leno Fire Hydrant (voice)
Dan Hedaya Mr. Gunk (voice)
James Earl Jones Voice Box at Hardware Store (voice)
David Lindsay-Abaire Screenplay, Story
Randy Jackson Watch #2 (voice) (uncredited)
Enrico Casarosa Storyboard Artist
Dianne Wiest Mrs. Copperbottom (voice)
Will Denton Young Rodney (voice)
Greg Kinnear Ratchet (voice)
Stephen Tobolowsky Bigmouth Executive / Forge (voice)
Kent Beyda Additional Editing, Thanks
Amanda Bynes Piper (voice)
Alan Rosenberg Jack Hammer (voice)
Mel Brooks Bigweld (voice)
Bob Camp Storyboard Artist
Chris Meledandri Executive Producer
Harland Williams Lug (voice)
Jeannine Berger Post Production Supervisor
John Powell Original Music Composer
Ray Iannicelli Additional Voices
Gary Burritt Negative Cutter
Paula Abdul Watch (voice)
Tim Nordquist Associate Editor, Tin Man (voice)
Arun Ram-Mohan Lighting Artist
Terry Bradshaw Broken Arm Bot (voice)
Damien Fahey Stage Announcer (voice)
Jackie Hoffman Water Cooler (voice)
James Brown Diesel (archive footage) (uncredited)
Mark Filip Apprentice Sound Editor
William Joyce Producer, Production Design
Natasha Leonnet Digital Color Timer
Marshall Efron Lamppost / Toilet Bot / Bass Drum / Microphone
Robert Fernandez Scoring Mixer
David Esneault Lighting Supervisor
Darin De Paul Additional Voices
Sondra James Additional Voices
Nicholas Renbeck Supervising ADR Editor, Supervising Dialogue Editor
Sean Garnhart Sound Designer, Diesel (uncredited)
Tom Carlson Music Editor
Al Roker Mailbox (voice)
Jansen Panettiere Younger Rodney (voice)
Dann Fink Additional Voices
Brett Hoffman Script Coordinator
Johnny Gidcomb ADR Voice Casting
Marko Costanzo Foley Artist
Babaloo Mandel Screenplay
Derek Casari ADR Engineer
Jim McClain Story
Ron Mita Story
Jim Passon Color Timer
Lowell Ganz Screenplay, Mr. Gasket (voice)
Allen Dam Production Consultant
Marissa Littlefield Dialogue Editor
Carlos Saldanha Co-Director
Bob Gordon Co-Producer
John Carnochan Editor
Steve Martino Art Direction
Pete Anthony Conductor
Crawford Wilson Young Rodney (voice)
Lucille Bliss Pigeon Lady (voice)
Christian Kaplan Casting
Moroni Taylor Storyboard Artist