Cast
Chester Morris
'Rocky' Blake
Tom Chatterton
Lieutenant (uncredited)
Syd Saylor
Wireless Operator Sending Coded Message (uncredited)
Addison Richards
Admiral Ross
Rand Brooks
Listener (uncredited)
Jack Rube Clifford
Captain (uncredited)
Milton Kibbee
Fisherman (uncredited)
Al Bridge
Fisherman (uncredited)
Virginia Grey
Susan Thorson
Roger Moore
Orderly (uncredited)
Frank Orth
Old Sailor in Bilge Area (uncredited)
Lew Kelly
Sailor (uncredited)
Forbes Murray
Naval Aide (uncredited)
Harry Strang
Shore Patrol Sailor (uncredited)
Leon Ames
Recruiting Officer (uncredited)
Joe De Stefani
Fisherman (uncredited)
Charles Jordan
Signalman (uncredited)
Carl Esmond
U-Boat Captain
Edgar Dearing
Petty Officer (uncredited)
Wallace Beery
John Thorson
Don Castle
Radio Operator (uncredited)
Ferdinand Schumann-Heink
German Operator (uncredited)
John Qualen
Milo
Harry Semels
Cook on Tugboat (uncredited)
Clem Bevans
'Cap' Finch
Henry Victor
German U-Boat Officer
Joseph E. Bernard
Fisherman (uncredited)
Howard Hickman
Surgeon (uncredited)
Frank Faylen
Recruiting Officer (uncredited)
Lee Shumway
Sailor (uncredited)
Emmett Vogan
Junior Officer Standing by Map (uncredited)
Doodles Weaver
Sailor (uncredited)
Wade Boteler
Recruiting Officer (uncredited)
Douglass Dumbrille
District Commander
Budd Fine
Survivor (uncredited)
Regis Toomey
Ives
Henry Hunter
Ensign Dyer
Hans Schumm
German Sailor Looking for Wireless (uncredited)
Jonathan Hale
Admiral Girard
Jules Cowles
Man with Finch (uncredited)
Edward Hearn
Fisherman (uncredited)
Earle Hodgins
Fisherman (uncredited)
Claire McDowell
Nurse (uncredited)