Mystery Submarine
Posing as an ex-German medical officer, a U. S. Navy Intelligence Officer sets out to rescue a kidnapped scientist, and sink a Nazi submarine, hiding off the coast of South America.
Brett Young
Madeline Brenner (as Marta Toren)
Commander von Molter
Heldman
Dr. Adolph Guernitz
Carla (as Jacqueline Dalya Hilliard)
Bruno
Mrs. Weber (as Katharine Warren)
Captain Elliott
Kramer
Stefan (as Ralph Brooke)
Hartwig
Crew Members
