Gary Owens

Space Ghost (voice)

Ginny Tyler

Jan (voice)

Tim Matheson

Jace (voice)

Don Messick

Blip / Zorak (voice)

Keye Luke

Brak / Lokar (voice)

Ted Cassidy

Metallus / Tansut (voice)

Regis Cordic

Moltar (voice)

Vic Perrin

Creature King (voice)

John David Carson

Dino Boy (voice)

Mike Road

Ugh (voice)