Gary Owens

Space Ghost (voice)

Alexandra Stewart

Jan (voice)

Steve Spears

Jace (voice)

Frank Welker

Cosmo / Blip (voice)

Michael Winslow

Plutem (voice)

Darryl Hickman

Kid Comet (voice)

Michael Bell

Space Ace (voice)

Lennie Weinrib

Dipper (voice)

Don Messick

Astro / Gloop / Gleep (voice)

B.J. Ward

Elektra (voice)

Virginia Gregg

Tara (voice)

Sparky Marcus

Dorno (voice)

Mike Road

Zandor / Tundro / Zok / ... (voice)

Allan Lurie

Uglor (voice)

Casey Kasem

Announcer (voice)

David Raynr

Moleculad (voice)

Keene Curtis

Narrator (voice)

Stanley Ralph Ross

Additional Voices (voice)

Chuck McCann

Additional Voices (voice)

Richard Erdman

Additional Voices (voice)

John Stephenson

Additional Voices (voice)