Douglas CroftDick Grayson Shirley PattersonLinda Page Lynton BrentIntended Lockwood Pilot Dick CurtisAgent Croft of Section 50 Lester DorrAgent on Plane Gerald FrankCave of Horrors Thug Gus GlassmireMartin Warren Bob KaneNewsboy / Characters George MagrillHenchman at Sphinx Club Charles MiddletonKen Colton Harold MillerRestaurant Patron Stanley PriceHenchman Driver Cyril RingRestaurant Patron Charles C. WilsonCaptain Arnold Leslie SwabackerScenariusz Harry L. FraserScenariusz Rudolph C. FlothowProducer James S. Brown Jr.Director Of Photography Lee ZahlerOriginal Music Composer Bob KaneNewsboy / Characters