Autobots, Decepticons, Predaking and Predacons form an unlikely alliance to battle a resurrected Unicron.
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)
