Wallace Beery
John Thorson
Chester Morris
'Rocky' Blake
Virginia Grey
Susan Thorson
Douglass Dumbrille
District Commander
Carl Esmond
U-Boat Captain
Clem Bevans
'Cap' Finch
John Qualen
Milo
Regis Toomey
Ives
Henry Victor
German U-Boat Officer
Addison Richards
Admiral Ross
Hans Joby
U-Boat Petty Officer
Henry Hunter
Ensign Dyer
Jonathan Hale
Admiral Girard
Leon Ames
Recruiting Officer (uncredited)
Arthur Belasco
Fisherman (uncredited)
Joseph E. Bernard
Fisherman (uncredited)
Wade Boteler
Recruiting Officer (uncredited)
Al Bridge
Fisherman (uncredited)
Rand Brooks
Listener (uncredited)
Don Castle
Radio Operator (uncredited)
Jack Chapin
Sailor (uncredited)
Tom Chatterton
Lieutenant (uncredited)
Jack Rube Clifford
Captain (uncredited)
Jules Cowles
Man with Finch (uncredited)
Leigh De Lacey
Mrs. Gill (uncredited)
Joe De Stefani
Fisherman (uncredited)
Edgar Dearing
Petty Officer (uncredited)
Richard Elmore
Lookout (uncredited)
Frank Faylen
Recruiting Officer (uncredited)
Budd Fine
Survivor (uncredited)
Allen Fox
Lookout (uncredited)
Frederick Lee
Sailor (uncredited)
Eddie Hart
Fisherman (uncredited)
Edward Hearn
Fisherman (uncredited)
Howard Hickman
Surgeon (uncredited)
Earle Hodgins
Fisherman (uncredited)
Clarke Jennings
Wireless Operator (uncredited)
Payne B. Johnson
Boy (uncredited)
Charles Jordan
Signalman (uncredited)
Lew Kelly
Sailor (uncredited)
Jack Kennedy
Fisherman (uncredited)
Milton Kibbee
Fisherman (uncredited)
Claire McDowell
Nurse (uncredited)
Larry McGrath
Radio Operator (uncredited)
Roger Moore
Orderly (uncredited)
Philip Morris
Fisherman (uncredited)
Forbes Murray
Naval Aide (uncredited)
Frank Orth
Old Sailor in Bilge Area (uncredited)
Syd Saylor
Wireless Operator Sending Coded Message (uncredited)
Harold Schlickenmayer
Engineer (uncredited)
Ferdinand Schumann-Heink
German Operator (uncredited)
Hans Schumm
German Sailor Looking for Wireless (uncredited)
Harry Semels
Cook on Tugboat (uncredited)
Lee Shumway
Sailor (uncredited)
Robert R. Stephenson
German Sailor (uncredited)
Harry Strang
Shore Patrol Sailor (uncredited)
Walter Thiele
Young German Sailor (uncredited)
Emmett Vogan
Junior Officer Standing by Map (uncredited)
Wolfram Von Bock
German Officer (uncredited)
Hans von Morhart
German Sailor (uncredited)
Doodles Weaver
Sailor (uncredited)
J. Walter Ruben
Producer
David Snell
Music
Edward Ward
Music
Frank E. Hull
Editor
Cedric Gibbons
Art Direction
Edwin B. Willis
Set Decoration
Dolly Tree
Costume Design
Fred Valles
Costume Design
Urie McCleary
Assistant Art Director
Douglas Shearer
Sound Director
George B. Seitz
Director
Wells Root
Screenplay
Harvey S. Haislip
Screenplay
Harvey S. Haislip
Story
Ralph Wheelwright
Story
John F. Seitz
Director of Photography