Peter CullenOptimus Prime / Streetwise / Nightstick / Slugslinger / Wingspan Frank WelkerMegatron (voice) / Soundwave (voice) Jack AngelUltra Magnus / Cyclonus (voice) Corey BurtonSpike Witwicky / Sunstreaker / Brawn Dan GilvezanBumblebee (voice) John StephensonThundercracker / Windcharger / Huffer Christopher CollinsStarscream / Wheeljack / Sparkplug / Reflector Victor CaroliNarrator (voice) Neil RossBonecrusher / Hook / Slag Michael BellProwl / Bombshell / Sideswipe/ Swoop Don MessickRatchet / Gears / Scavenger Gregg BergerGrimlock (voice) Hal RayleSnarl / Shrapnel / Pipes Casey KasemCliffjumper / Bluestreak / Teletraan 1 Scatman CrothersJazz (voice) Ed GilbertThrust / Blitzwing / Superion Jim CummingsAfterburner / Rippersnapper Paul EidingPerceptor (voice) David MendenhallDaniel Witwicky Richard GautierRodimus Prime (voice) Aron KincaidSky Lynx (voice) Arthur BurghardtDevastator (voice) Stan JonesScourge (voice) Mona MarshallAron (voice) / Marty (voice) Brad GarrettTrypticon (voice) Clive RevillKickback (voice) Stephen KeenerMindwipe (voice) Tony PopeAlpha Trion (voice) Wally BurrKremzeek (voice) Roger C. CarmelEl Presidente (voice) Steve BulenSureshot (voice) John Moschitta Jr.Blurr (voice) Johnny HaymerHighbrow (voice) Jered BarclayCerebros (voice) Laurie FasoPlayback (voice) Jeff MacKayFireflight (voice) Jerry HouserSandstorm (voice) Morgan LoftingDoctor Harding (voice) Beau WeaverOctane (voice) Michael ChainRaoul (voice) T.K. CarterRocksteady (voice) Marlene AragonElita-1 (voice) Michael Charles HillSchrijver Cherie Dee WilkersonSchrijver Joey Kurihara PiedraSchrijver Susan K. WilliamsSchrijver David N. GottliebSchrijver Arthur Byron CoverSchrijver Tony CinciripiniSchrijver Margaret LoeschExecutive Producer Johnny DouglasOriginal Music Composer Robert J. WalshOriginal Music Composer Nelson ShinSupervising Producer 
