Cast (13)
Peter CullenOptimus Prime (voice)
Frank WelkerMegatron (voice)
Sumalee MontanoArcee (voice)
Jeffrey CombsRatchet (voice)
Will FriedleBumblebee (voice)
James HoranWheeljack (voice)
Michael IronsideUltra Magnus (voice)
Peter MensahPredaking (voice)
John NobleUnicron (voice)
Daran NorrisKnock Out (voice)
Nolan NorthSmokescreen (voice)
Kevin Michael RichardsonBulkhead (voice)
David SobolovShockwave (voice)