Peter Cullen

Optimus Prime (voice),Optimus Prime / Streetwise / Nightstick / Slugslinger / Wingspan

Frank Welker

Megatron (voice) / Soundwave (voice),Galvatron / Chromedome (voice)

Jack Angel

Ultra Magnus / Cyclonus (voice)

Corey Burton

Spike Witwicky / Sunstreaker / Brawn,Spike Witwicky (voice)

Dan Gilvezan

Bumblebee (voice),Goldbug (voice)

John Stephenson

Kup (voice),Thundercracker / Windcharger / Huffer

Christopher Collins

Skullcruncher (voice),Starscream / Wheeljack / Sparkplug / Reflector

Victor Caroli

Narrator (voice)

Neil Ross

Crosshairs (voice),Bonecrusher / Hook / Slag

Michael Bell

Brainstorm (voice),Prowl / Bombshell / Sideswipe/ Swoop