An Air Force captain is assigned to find some missing top-secret microfilm.

Buster Crabbe
as Thunda / Roger Drum

Gloria Dea
as Princess Pha

Leonard Penn
as Boris

Rick Vallin
as Andreov

Jack Ingram
as Clark

Nick Stuart
as Degar

William Fawcett
as High Priest

Neyle Morrow
as Nahee

Bart Davidson
as Alexis

Rusty Wescoatt
as Kor