Peter Cullen

Optimus Prime (voice)

Frank Welker

Megatron / Terrorcon (voice)

Steve Blum

Starscream / Darksteel (voice)

Jeffrey Combs

Ratchet (voice)

Will Friedle

Bumblebee (voice)

James Horan

Wheeljack (voice)

Michael Ironside

Ultra Magnus (voice)

Peter Mensah

Predaking (voice)

Sumalee Montano

Arcee (voice)

John Noble

Unicron (voice)

Daran Norris

Knock Out (voice)

Nolan North

Smokescreen / Skylynx (voice)