Roll out with Optimus Prime, Bumblebee, Arcee, Ratchet, Bulkhead, and the rest of the heroic Autobots as they battle the evil Decepticons. Now that big bad Megatron has returned with a mysterious and dangerous element, Team Prime must prepare for an epic battle.
| Actor | Role |
|---|---|
 Peter CullenOptimus Prime (voice) | Optimus Prime (voice) |
 Jeffrey CombsRatchet (voice) | Ratchet (voice) |
 Frank WelkerMegatron (voice) | Megatron (voice) |
 Tania GunadiMiko Nakadai (voice) | Miko Nakadai (voice) |
 Josh KeatonJack Darby (voice) | Jack Darby (voice) |
 Kevin Michael RichardsonBulkhead (voice) | Bulkhead (voice) |
 Ernie HudsonAgent William Fowler (voice) | Agent William Fowler (voice) |
 Andy PessoaRafael "Raf" Esquivel (voice) | Rafael "Raf" Esquivel (voice) |
 Sumalee MontanoArcee (voice) | Arcee (voice) |
 Nolan NorthSmokescreen (voice) | Smokescreen (voice) |
 Steve BlumStarscream (voice) | Starscream (voice) |
 Michael IronsideUltra Magnus (voice) | Ultra Magnus (voice) |
 David SobolovShockwave (voice) | Shockwave (voice) |
 Daran NorrisKnock Out (voice) | Knock Out (voice) |