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