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