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