Peter Cullen
Optimus Prime (voice)
Acting
Frank Welker
Megatron (voice)
Acting
Mark Ryan
Bumblebee (voice)
Acting
Patrick Hallahan
Starscream (voice)
Acting
Brian Stepanek
Blackout / Agent Simmons (voice)
Acting
Kevin Dunn
Ron Witwicky
Acting
Patrick Viall
Capt. Archibald Witwicky / Barricade / Additional Voices (voice)
Acting
Justin Foley
Additional Voices (voice)
Acting