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