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Elenco

• 
  James StephensonPhilo Vance
• 
  Margot StevensonHilda Lake
• 
  Henry O'NeillMarkham
• 
  Edward BrophyRyan
• 
  Sheila BromleyDoris Delafield
• 
  Ralph ForbesTom McDonald
• 
  Donald DouglasPhilip Wrede
• 
  Martin KosleckGamble
• 
  Jimmy ConlinDr. Doremus - Coroner
• 
  Edward RaquelloEduardo Grassi
• 
  Creighton HaleDu Bois - Fingerprint Man
• 
  Harry StrangHennessey - Markham's Assistant
• Richard KiplingArcher Coe
• 
  Wedgwood NowellBrisbane Coe
• Bo LingLing Toy
• 
  TerryMacTavish (sem créditos)
• 
  Herbert AndersonFirst Reporter (sem créditos)
• Henry BlairHans Snauble (sem créditos)
• 
  Egon BrecherAustrian Judge (sem créditos)
• 
  Harry BurnsCapt. Lugo (sem créditos)
• 
  Yakima CanuttSorrento Sailor (sem créditos)
• 
  Nat Carr2nd Photographer (sem créditos)
• 
  Glen CavenderTrain Porter Asked to Send Telegram (sem créditos)
• Loia CheaneyMarkham's Secretary (sem créditos)
• Frederick GiermannAustrian Sergeant (sem créditos)
• Eddie GrahamCoroner's Assistant (sem créditos)
• 
  John HarronThird Reporter (sem créditos)
• 
  Stuart HolmesHertz (sem créditos)
• 
  William HopperClerk at Hotel Nino in Chicago (sem créditos)
• 
  Olaf HyttenCharles (sem créditos)
• 
  George IrvingAvery (sem créditos)
• 
  Marion LessingMrs. Fritz Snauble (sem créditos)
• Rolf LindauAeronautics Department Sentry (sem créditos)
• 
  Frank MayoDoorman (sem créditos)
• 
  George ReevesSteamship Clerk (sem créditos)
• 
  John J. Richardson4h Reporter (sem créditos)
• Cliff SaumInvestigator Snitken (sem créditos)
• Hans SchummNazi Officer at Dock (sem créditos)
• 
  Frank Wilcox2nd Reporter (sem créditos)
• Jack Wise1st Photographer (sem créditos)
• 
  Maris WrixonLong-Distance Operator (sem créditos)
• Henry ZyndaAustrian Lieutenant (sem créditos)

Equipe Técnica