Autres personnages
- Rodney Copperbottom
Ewan McGregoranglais - Cappy
Halle Berryanglais - Ratchet
Greg Kinnearanglais - Bigweld
Mel Brooksanglais - Crank
Drew Careyanglais - Piper
Amanda Bynesanglais - Fender
Robin Williamsanglais - Madame Gasket
Jim Broadbentanglais - Herb Copperbottom
Stanley Tuccianglais - Mrs. Copperbottom
Dianne Wiestanglais - Lug
Harland Williamsanglais - Aunt Fanny
Jennifer Coolidgeanglais - Tim the Gate Guard
Paul Giamattianglais - Loretta Geargrinder
Natasha Lyonneanglais - Wonderbot / Phone Booth
Chris Wedgeanglais - Mr. Gunk
Dan Hedayaanglais - Lamppost / Toilet Bot / Bass Drum / Microphone
Marshall Efronanglais - Broken Arm Bot
Terry Bradshawanglais - Mailbox
Al Rokeranglais - Pigeon Lady
Lucille Blissanglais - Fire Hydrant
Jay Lenoanglais - Mr. Gasket
Lowell Ganzanglais - Watch
Paula Abdulanglais - Water Cooler
Jackie Hoffmananglais - Trashcan Bot
Brian Scott McFaddenanglais - Tin Man
Tim Nordquistanglais - Voice Box at Hardware Store
James Earl Jonesanglais - Stage Announcer
Damien Faheyanglais - Bigmouth Executive / Forge
Stephen Tobolowskyanglais - Younger Rodney
Jansen Panettiereanglais - Young Rodney
Will Dentonanglais - Youngest RodneyDylan Dentonanglais
- Additional Voices
Lara Codyanglais - Jack Hammer
Alan Rosenberganglais - Additional Voices / ADR Loop Group
Bruce Winantanglais - DJ Robot (uncredited)
Chingyanglais - Diesel (uncredited)Sean Garnhartanglais
- Watch #2 (voice) (uncredited)
Randy Jacksonanglais - Diesel (archive footage) (uncredited)
James Brownanglais