Peter Cullen

Optimus Prime (voice)

Frank Welker

Megatron (voice)

Sumalee Montano

Arcee (voice)

Jeffrey Combs

Ratchet (voice)

Will Friedle

Bumblebee (voice)

James Horan

Wheeljack (voice)

Michael Ironside

Ultra Magnus (voice)

Peter Mensah

Predaking (voice)

John Noble

Unicron (voice)

Daran Norris

Knock Out (voice)

Nolan North

Smokescreen (voice)

Kevin Michael Richardson

Bulkhead (voice)

David Sobolov

Shockwave (voice)