As the entire world went "space action" crazy at the end of the Seventies, Hanna-Barbera reconvened its Sci-Fi superstars Space Ghost and the Herculoids for another round of adventures. Joining the sixties sci-fi faves in their interstellar battle against evil were newcomers Teen Force and Astro and the Space Mutts (yes, that Astro!).

Gary Owensas Space Ghost (voice)
Alexandra Stewartas Jan (voice)
Frank Welkeras Cosmo / Blip (voice)
Michael Winslowas Plutem (voice)
Darryl Hickmanas Kid Comet (voice)
Michael Bellas Space Ace (voice)
Lennie Weinribas Dipper (voice)
Don Messickas Astro / Gloop / Gleep (voice)
B.J. Wardas Elektra (voice)