Riven

Peter Cullen

as Optimus Prime (voice)

Frank Welker

as Megatron (voice)

Sumalee Montano

as Arcee (voice)

Jeffrey Combs

as Ratchet (voice)

Will Friedle

as Bumblebee (voice)

James Horan

as Wheeljack (voice)

Michael Ironside

as Ultra Magnus (voice)

Peter Mensah

as Predaking (voice)

John Noble

as Unicron (voice)

Daran Norris

as Knock Out (voice)

Nolan North

as Smokescreen (voice)

Kevin Michael Richardson

as Bulkhead (voice)

David Sobolov

as Shockwave (voice)

Matthew Humphreys

Storyboard Artist

Vinton Heuck

Director

Todd Waterman

Director

Alex Kurtzman

Producer

Roberto Orci

Producer

Roberto Orci

Writer

Steven Melching

Writer

Brian Tyler

Music

Marsha Griffin

Writer

Scooter Tidwell

Director

David Hartman

Art Direction