The Autobots must stop a colossal planet-consuming robot who goes after the Autobot Matrix of Leadership. At the same time, they must defend themselves against an all-out attack from the Decepticons.
Judd Nelson
as Hot Rod / Rodimus Prime (voice)
Peter Cullen
as Optimus Prime / Ironhide (voice)
Frank Welker
as Soundwave / Megatron / Rumble / Frenzy / Wheelie (voice)
Leonard Nimoy
as Galvatron (voice)
Orson Welles
as Unicron (voice)
Casey Kasem
as Cliffjumper (voice)
Dan Gilvezan
as Bumblebee (voice)
Scatman Crothers
as Jazz (voice)
Susan Blu
as Arcee (voice)
Eric Idle
as Wreck-Gar (voice)
Robert Stack
as Ultra Magnus (voice)
Norman Alden
as Kranix (voice)