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James Stephenson as Philo Vance |
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Margot Stevenson as Hilda Lake |
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Henry O'Neill as Markham |
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Edward Brophy as Ryan |
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Sheila Bromley as Doris Delafield |
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Ralph Forbes as Tom McDonald |
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Donald Douglas as Philip Wrede |
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Martin Kosleck as Gamble |
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Jimmy Conlin as Dr. Doremus - Coroner |
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Edward Raquello as Eduardo Grassi |
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Creighton Hale as Du Bois - Fingerprint Man |
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Harry Strang as Hennessey - Markham's Assistant |
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Richard Kipling as Archer Coe |
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Wedgwood Nowell as Brisbane Coe |
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Bo Ling as Ling Toy |
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Terry as MacTavish (uncredited) |
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Herbert Anderson as First Reporter (uncredited) |
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Henry Blair as Hans Snauble (uncredited) |
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Egon Brecher as Austrian Judge (uncredited) |
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Harry Burns as Capt. Lugo (uncredited) |
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Yakima Canutt as Sorrento Sailor (uncredited) |
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Nat Carr as 2nd Photographer (uncredited) |
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Glen Cavender as Train Porter Asked to Send Telegram (uncredited) |
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Loia Cheaney as Markham's Secretary (uncredited) |
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Frederick Giermann as Austrian Sergeant (uncredited) |
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Eddie Graham as Coroner's Assistant (uncredited) |
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John Harron as Third Reporter (uncredited) |
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Stuart Holmes as Hertz (uncredited) |
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William Hopper as Clerk at Hotel Nino in Chicago (uncredited) |
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Olaf Hytten as Charles (uncredited) |
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George Irving as Avery (uncredited) |
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Marion Lessing as Mrs. Fritz Snauble (uncredited) |
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Rolf Lindau as Aeronautics Department Sentry (uncredited) |
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Frank Mayo as Doorman (uncredited) |
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George Reeves as Steamship Clerk (uncredited) |
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John J. Richardson as 4h Reporter (uncredited) |
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Cliff Saum as Investigator Snitken (uncredited) |
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Hans Schumm as Nazi Officer at Dock (uncredited) |
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Frank Wilcox as 2nd Reporter (uncredited) |
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Jack Wise as 1st Photographer (uncredited) |
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Maris Wrixon as Long-Distance Operator (uncredited) |
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Henry Zynda as Austrian Lieutenant (uncredited) |
| Camera | L. William O'Connell | Director of Photography |
| Editing | Louis Lindsay | Editor |
| Editing | Ben G. Liss | Editor |
| Art | Ted Smith | Art Direction |
| Costume & Make-Up | Howard Shoup | Costume Design |
| Sound | Charles Lang | Sound |
| Directing | William Clemens | Director |
| Writing | Tom Reed | Screenplay |
| Writing | S.S. Van Dine | Novel |
