Frank Welker
Megatron / Mirage / Rumble / Skywarp / Soundwave (voice)
Gregg Berger
Cliffjumper / Narrator / Spike Witwicky / additional voices (voice)
Peter Cullen
Optimus Prime / Ironhide (voice)
Frank Todaro
Starscream / Wheeljack / Reflector / Sparkplug Witwicky (voice)
Arif S. Kinchen
Jazz (voice)
Dan Gilvezan
Bumblebee / Shockwave (voice)
Michael Bell
Prowl (voice)
Victor Caroli
Narrator (archive audio)
Paul Eiding
Hound / Ratchet / Teletraan 1 / Thundercracker (voice)
Corey Burton
Spike Witwicky / Shockwave / Brawn (archive audio)
Don Messick
Gears / Ratchet (archive audio)
John Stephenson
Huffer / Thundercracker (archive audio)
Scatman Crothers
Jazz (archive audio)
Christopher Collins
Starscream / Wheeljack / Laserbeak (archive audio)
