Michael Winslow

as Plutem (voice)

66 episodes

Darryl Hickman

as Kid Comet (voice)

66 episodes

Frank Welker

as Cosmo

(+1 more)

66 episodes

Michael Bell

as Space Ace (voice)

66 episodes

Lennie Weinrib

as Dipper (voice)

66 episodes

Don Messick

as Astro

(+2 more)

66 episodes

Gary Owens

as Space Ghost (voice)

66 episodes

B.J. Ward

as Elektra (voice)

66 episodes

Alexandra Stewart

as Jan (voice)

66 episodes

Virginia Gregg

as Tara (voice)

66 episodes

Steve J. Spears

as Jace (voice)

66 episodes

Sparky Marcus

as Dorno (voice)

66 episodes

Mike Road

as Zandor

(+3 more)

66 episodes

Allan Lurie

as Uglor (voice)

66 episodes

Casey Kasem

as Announcer (voice)

66 episodes

David Raynr

as Moleculad (voice)

66 episodes

Keene Curtis

as Narrator (voice)

66 episodes

Stanley Ralph Ross

as Additional Voices (voice)

66 episodes

Chuck McCann

as Additional Voices (voice)

66 episodes

Richard Erdman

as Additional Voices (voice)

66 episodes