Robots

Ewan McGregor

As Rodney Copperbottom (voice)

Halle Berry

As Cappy (voice)

Greg Kinnear

As Ratchet (voice)

Mel Brooks

As Bigweld (voice)

Drew Carey

As Crank (voice)

Amanda Bynes

As Piper (voice)

Robin Williams

As Fender (voice)

Jim Broadbent

As Madame Gasket (voice)

Stanley Tucci

As Herb Copperbottom (voice)

Dianne Wiest

As Mrs. Copperbottom (voice)

Harland Williams

As Lug (voice)

Jennifer Coolidge

As Aunt Fanny (voice)

Paul Giamatti

As Tim the Gate Guard (voice)

Natasha Lyonne

As Loretta Geargrinder (voice)

Chris Wedge

As Wonderbot / Phone Booth (voice)

Dan Hedaya

As Mr. Gunk (voice)

Marshall Efron

As Lamppost / Toilet Bot / Bass Drum / Microphone

Terry Bradshaw

As Broken Arm Bot (voice)

Al Roker

As Mailbox (voice)

Lucille Bliss

As Pigeon Lady (voice)

Jay Leno

As Fire Hydrant (voice)

Lowell Ganz

As Mr. Gasket (voice)

Paula Abdul

As Watch (voice)

Jackie Hoffman

As Water Cooler (voice)

Brian Scott McFadden

As Trashcan Bot (voice)

Tim Nordquist

As Tin Man (voice)

James Earl Jones

As Voice Box at Hardware Store (voice)

Damien Fahey

As Stage Announcer (voice)

Stephen Tobolowsky

As Bigmouth Executive / Forge (voice)

Jansen Panettiere

As Younger Rodney (voice)

Will Denton

As Young Rodney (voice)

Crawford Wilson

As Young Rodney (voice)

Dylan Denton

As Youngest Rodney (voice)

Jennifer Perito

As Additional Voices

Alan Rosenberg

As Jack Hammer (voice)

Lara Cody

As Additional Voices

Cooper Cowgill

As Additional Voices

David Crommett

As Additional Voices

Darin De Paul

As Additional Voices

Dann Fink

As Additional Voices

Timothy Gulan

As Additional Voices

Ray Iannicelli

As Additional Voices

Sondra James

As Additional Voices

Vanessa Lemonides

As Additional Voices

Marcus Maurice

As Additional Voices

David Rossmer

As Additional Voices

Bruce Winant

As Additional Voices / ADR Loop Group

Chris Moyles

As Stage Announcer (voice)

Chingy

As DJ Robot (uncredited)

Sean Garnhart

As Diesel (uncredited)

Paul Urmson

As Diesel (uncredited)

Randy Jackson

As Watch #2 (voice) (uncredited)

James Brown

As Diesel (archive footage) (uncredited)