Lloyd Bacon Director Joel McCrea Barry Corvall Actor Brenda Marshall Brenda Ballard Actor George Bancroft Dudley "Dud", "Donald" Garrett Actor Jeffrey Lynn Lowell Warrington Actor Stanley Ridges Hamilton Peyton Actor James Stephenson Dr. Anton Rader Actor Howard C. Hickman Walter Forbes Actor Nana Bryant Mrs. Corvall Actor Rudolph Anders Paul Strawn Actor Hans Heinrich von Twardowski Dr. Helm Actor Addison Richards Bruce Corvall Actor Edwin Stanley Secretary of State Actor William Hopper Student (uncredited) Actor Glenn Langan Student (uncredited) Actor Lionel Royce Hoffmeyer (uncredited) Actor Henry Victor Foreign Official (uncredited) Actor Lucien Prival Decker Actor Lloyd Ingraham Actor Louis F. Edelman Producer Hal B. Wallis Executive Producer Warren Duff Screenwriter Michael Fessier Screenwriter Frank Donoghue Screenwriter Adolph Deutsch Original Music Charles Rosher Cinematographer Ralph Dawson Film Editing Carl Jules Weyl Art Director