Ewan McGregor

Rodney Coppe...

Robin Williams

Fender (voice)

Halle Berry

Cappy (voice)

Amanda Bynes

Piper (voice)

Mel Brooks

Bigweld (voice)

Jim Broadbent

Madame Gaske...

Greg Kinnear

Ratchet (voice)

Stanley Tucci

Herb Copperb...

Dianne Wiest

Mrs. Copperb...

Drew Carey

Crank (voice)

Harland Williams

Lug (voice)

Jennifer Coolidge

Aunt Fanny (voice)

Paul Giamatti

Tim the Gate...

Natasha Lyonne

Loretta Gear...

Chris Wedge

Wonderbot / ...

Dan Hedaya

Mr. Gunk (voice)

Marshall Efron

Lamppost / T...

Terry Bradshaw

Broken Arm B...

Al Roker

Mailbox (voice)

Lucille Bliss

Pigeon Lady ...

Jay Leno

Fire Hydrant...

Lowell Ganz

Mr. Gasket (voice)

Paula Abdul

Watch (voice)

Jackie Hoffman

Water Cooler...

Brian Scott McFadden

Trashcan Bot...

Tim Nordquist

Tin Man (voice)

James Earl Jones

Voice Box at...

Damien Fahey

Stage Announ...

Stephen Tobolowsky

Bigmouth Exe...

Jansen Panettiere

Younger Rodn...

Will Denton

Young Rodney...

Crawford Wilson

Young Rodney...

Dylan Denton

Youngest Rod...

Jennifer Perito

Additional Voices

Alan Rosenberg

Jack Hammer ...

Lara Cody

Additional Voices

Cooper Cowgill

Additional Voices

David Crommett

Additional Voices

Darin De Paul

Additional Voices

Dann Fink

Additional Voices

Timothy Gulan

Additional Voices

Ray Iannicelli

Additional Voices

Sondra James

Additional Voices

Vanessa Lemonides

Additional Voices

Marcus Maurice

Additional Voices

David Rossmer

Additional Voices

Bruce Winant

Additional V...

Chris Moyles

Stage Announ...

Chingy

DJ Robot (un...

Sean Garnhart

Diesel (uncr...

Paul Urmson

Diesel (uncr...

Randy Jackson

Watch #2 (vo...

James Brown

Diesel (arch...