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Brian Donlevy as Dr. Franticek Svoboda |
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Walter Brennan as Prof. Stephen Novotny |
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Anna Lee as Masha Novotny |
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Gene Lockhart as Emil Czaka |
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Dennis O'Keefe as Jan Horak |
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Margaret Wycherly as Ludmilla Novotny |
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Nana Bryant as Mrs. Hellie Novotny |
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William Roy as Boda Novotny |
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Hans Heinrich von Twardowski as Reinhard Heydrich |
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Alexander Granach as Gestapo Insp. Alois Gruber |
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Tonio Selwart as Chief of Gestapo Kurt Haas |
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Jonathan Hale as Dedic |
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Lionel Stander as Banya |
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Sarah Padden as Mrs. Georgia Dvorak |
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Edmund MacDonald as Dr. Pillar |
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Byron Foulger as Bartos |
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Virginia Farmer as Mrs. Nimitz |
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Ludwig Donath as Schirmer |
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George Irving as Neeval |
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James Bush as Peacock |
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Arno Frey as Camp Lieutenant Itnut |
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Lester Sharpe as Rudy |
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Arthur Loft as Gen. Votruba |
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Reinhold Schünzel as Gestapo Insp. Ritter |
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Chester Conklin as Cook (uncredited) |
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Claire McDowell as Counterwoman (uncredited) |
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John Abbott as Hostage (scenes deleted) |
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Louis Adlon as Adjutant (uncredited) |
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Erville Alderson as Liberal Official (uncredited) |
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Richard Alexander as Slugger in Theater (uncredited) |
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Dwight Frye as Hostage |
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Ralph Dunn as Czech Policeman (uncredited) |
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Bud Jamison as Fat Man (uncredited) |
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Philip Van Zandt as Officer (uncredited) |
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Sam Harris as Man at Briefing (uncredited) |
| Writing | ბერტოლტ ბრეხტი | Adaptation |
| Writing | ბერტოლტ ბრეხტი | Original Story |
| Writing | Fritz Lang | Original Story |
| Production | Fritz Lang | Producer |
| Writing | Fritz Lang | Adaptation |
| Production | Arnold Pressburger | Producer |
| Directing | Fritz Lang | Director |
| Writing | John Wexley | Screenplay |
| Sound | Arnold Pressburger | Music |
| Camera | James Wong Howe | Director of Photography |
| Art | William S. Darling | Art Direction |
| Production | Carley Harriman | Production Manager |
| Camera | Ned Scott | Still Photographer |
| Directing | Walter Mayo | Assistant Director |
| Directing | Fred Pressburger | Assistant Director |
| Editing | Gene Fowler Jr. | Editor |
| Costume & Make-Up | Eleanor Behm | Costume Design |
| Costume & Make-Up | Robert Stephanoff | Makeup Artist |
| Sound | Hanns Eisler | Music |
| Art | Julia Heron | Set Decoration |
| Sound | Fred Lau | Sound Recordist |
| Sound | Jack Whitney | Sound Recordist |
