Michael Bell Prowl, Sideswipe Voice Corey Burton Spike Witwicky, Sunstreaker, Brawn Voice Michael Chain Powerglide Guest Voice Scatman Crothers Jazz Voice Peter Cullen Optimus Prime, Ironhide Voice Dan Gilvezan Bumblebee Voice Casey Kasem Bluestreak, Cliffjumper, Teletraan I Voice Chris Latta Wheeljack, Starscream, Reflector, Sparkplug Witwicky Voice Don Messick Ratchet, Gears Voice John Stephenson Huffer, Thundercracker, Windcharger Voice Frank Welker Megatron, Soundwave, Laserbeak, Skywarp, Trailbreaker Voice Andy Kim Director Bob Kirk Director Al Kouzel Director Bob Matz Director Norm McCabe Director Margaret Nichols Director Karen Peterson Director Tom Ray Director Robert Shellhorn Director Bob Treat Director Terry Lennon Director Bryce Malek Writer Dick Robbins Writer