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