Megatron / Mirage / Rumble / Skywarp / Soundwave (voice)
Cliffjumper / Narrator / Spike Witwicky (voice)
Optimus Prime / Ironhide (voice)
Starscream / Wheeljack / Reflector / Sparkplug Witwicky (voice)
Jazz (voice)
Bumblebee / Shockwave (voice)
Prowl (voice)
Narrator (voice) (archive footage)
Hound / Ratchet / Teletraan 1 / Thundercracker (voice) (archive footage)
Spike Witwicky / Shockwave / Brawn (voice) (archive footage)
Gears / Ratchet (voice) (archive footage)
Huffer / Thundercracker (voice) (archive footage)
Jazz (voice) (archive footage)
Starscream / Wheeljack / Laserbeak (voice) (archive footage)