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Conrad Veidt as Otto Becker / Baron Hugo von Detner |
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Ann Ayars as Kaaren De Relle |
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Frank Reicher as Fritz |
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Dorothy Tree as Miss Harper |
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Ivan F. Simpson as Professor Sterling (as Ivan Simpson) |
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William Tannen as Ludwig |
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Martin Kosleck as Kurt Richten |
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Marc Lawrence as Joe Aiello |
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Sidney Blackmer as Arnold Milbar |
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Moroni Olsen as Brenner |
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Pierre Watkin as Grover Blaine McHenry |
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Ernie Alexander as Sailor (uncredited) |
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Rudolph Anders as Cab Driver (uncredited) |
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Jessie Arnold as Landlady (uncredited) |
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Walter Bacon as Spy (uncredited) |
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Polly Bailey as Fat Woman (uncredited) |
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Roy Barcroft as Chief Petty Officer (uncredited) |
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Barbara Bedford as Woman (uncredited) |
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Arthur Belasco as Detective (uncredited) |
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Walter Byron as Officer (uncredited) |
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Baldwin Cooke as Waiter (uncredited) |
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Hal Cooke as Clerk (uncredited) |
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Clyde Courtright as Doorman (uncredited) |
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Stuart Crawford as Commentator (voice) (uncredited) |
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Jack Daley as Reporter (uncredited) |
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Mark Daniels as Cab Driver (uncredited) |
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Cliff Danielson as Youth (uncredited) |
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Jack Deery as Diplomat (uncredited) |
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Drew Demorest as Reporter (uncredited) |
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Harry Denny as Restaurant Patron (uncredited) |
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Herschel Graham as Reporter (uncredited) |
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Bernadene Hayes as Rosie (uncredited) |
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Edward Hearn as Reporter (uncredited) |
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Robert Homans as 1st Captain (uncredited) |
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Carl M. Leviness as Onlooker at Departure (uncredited) |
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Wilbur Mack as Reporter (uncredited) |
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George Magrill as Thug (uncredited) |
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Frank Marlowe as Sailor (uncredited) |
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Charles Meakin as Restaurant Patron (uncredited) |
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James Millican as Operator (uncredited) |
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Roger Moore as Messenger (uncredited) |
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George Noisom as Bellboy (uncredited) |
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William Post Jr. as Harry (voice) (uncredited) |
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Paul Power as Restaurant Patron (uncredited) |
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Christian Rub as Mohr (uncredited) |
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Buck Russell as Restaurant Patron (uncredited) |
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Tim Ryan as Officer (uncredited) |
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Jeffrey Sayre as Restaurant Patron (uncredited) |
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Charles Sherlock as Detective (uncredited) |
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Russell Simpson as 2nd Captain (uncredited) |
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Harry Stafford as Elderly Man (uncredited) |
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Hermine Sterler as Mrs. Mohr (uncredited) |
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Tom Stevenson as Headwaiter (uncredited) |
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Brick Sullivan as Radio Operator (uncredited) |
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Ray Teal as Officer Graves (uncredited) |
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Philip Van Zandt as Thug (uncredited) |
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Roland Varno as Bauer (uncredited) |
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Duke York as Sailor (uncredited) |
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Jeff York as Keeler (uncredited) |
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Joe Yule as Barney (uncredited) |
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William Bailey as |
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Margaret Bert as |
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Joe Gilbert as Submarine Radioman (uncredited) |
| Production | Irving Asher | Producer |
| Camera | Harry Stradling Sr. | Director of Photography |
| Editing | Frank E. Hull | Editor |
| Directing | Jules Dassin | Director |
| Sound | Sol Kaplan | Music |
| Crew | Duke York | Stunts |
| Sound | Wally Heglin | Orchestrator |
| Sound | Leonid Raab | Orchestrator |
| Sound | Joseph Nussbaum | Orchestrator |
| Sound | Daniele Amfitheatrof | Music |
| Writing | Lothar Mendes | Story |
| Sound | David Snell | Music |
| Sound | Bronislau Kaper | Music |
| Art | Cedric Gibbons | Art Direction |
| Writing | Paul Gangelin | Screenplay |
| Writing | John Meehan Jr. | Screenplay |
| Sound | Lennie Hayton | Original Music Composer |
| Art | Edwin B. Willis | Set Decoration |
| Costume & Make-Up | Howard Shoup | Costume Design |
| Costume & Make-Up | Jack Dawn | Makeup Artist |
| Art | Stan Rogers | Art Direction |
| Costume & Make-Up | Sydney Guilaroff | Hairstylist |
| Sound | Douglas Shearer | Sound Director |