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