Anthony Dexter as Luther Blair

Susan Shaw as Hestia

Paul Carpenter as Capt. Larson

Jacqueline Curtis as Duessa

Harry Fowler as Sydney Stanhope

Sydney Tafler as Dr. Higgins

Rodney Diak as Anderson

Owen Berry as Prasus

Richard Walter as The Monster

Maya Koumani as Fire Maiden

Norma Arnould as Fire Maiden

Sylvia Burrows as Fire Maiden

Kim Parker as Fire Maiden

Jan Holden as Fire Maiden