Peter Cullen
as Optimus Prime/Ironhide
Corey Burton
as Spike Witwicky/Brawn/Shockwave
Robert Stack
as Ultra Magnus
Frank Welker
as Megatron/Soundwave/Rumble/Frenzy/Laserbeak/Ravage/
Casey Kasem
as Cliffjumper
Neil Ross
as Bonecrusher/Hook/Springer/Slag
Orson Welles
Michael Bell
as Prowl/Scrapper/Swoop/Junkion