Full Cast — Thundarr the Barbarian (1980–1981)

Robert Ridgely

Thundarr (voice)

Henry Corden

Ookla the Mok (voice)

Nellie Bellflower

Princess Ariel (voice)

Dick Tufeld

Narrator (voice)

Keye Luke

(voice) / Kublai (voice) / Zevon (voice)

Nancy McKeon

Tye (voice)

Alan Oppenheimer

Mindok the Mind Menace (voice) / Morag (voice)

Joan Van Ark

Cinda (voice) / Captain Corden (voice)

Avery Schreiber

Octagon (voice)

Janet Waldo

Circe (voice)

Michael Bell

Yondo (voice)

Chuck McCann

Artemus (voice)

Michael Ansara

Vashstarr (voice)