Umbra creates Tobor, a giant robot that looks like Mighty Orbots, and has it run amok. Soon the Orbots are sentenced to Devil's Asteroid, the Alcatraz of space, for Tobor's crimes.
Barry Gordon
Rob Simmons (voice)
Don Messick
Crunch / Commander Rondu (voice)
Sherry Alberoni
Bo (voice)
Julie Bennett
Boo (voice)
Jim MacGeorge
Bort (voice)
Bill Martin
Tor (voice)
Noelle North
Ohno (voice)
Jennifer Darling
Dia (voice)
Robert Ridgely
Actor
Gary Owens
Narrator (voice)