Peter Cullen

Optimus Prime / Streetwise / Nightstick / Slugslinger / Wingspan

Frank Welker

Megatron (voice) / Soundwave (voice)

Jack Angel

Ultra Magnus / Cyclonus (voice)

Corey Burton

Spike Witwicky / Sunstreaker / Brawn

Don Messick

Ratchet / Gears / Scavenger

John Stephenson

Thundercracker / Windcharger / Huffer

Christopher Collins

Starscream / Wheeljack / Sparkplug / Reflector

Dan Gilvezan

Bumblebee (voice)

Hal Rayle

Snarl / Shrapnel / Pipes

Casey Kasem

Cliffjumper / Bluestreak / Teletraan 1

Neil Ross

Bonecrusher / Hook / Slag

Scatman Crothers

Jazz (voice)