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

Jonathan Hale

Admiral Girard

Leon Ames

Recruiting Officer (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)

Jules Cowles

Man with Finch (uncredited)

Edgar Dearing

Petty Officer (uncredited)

Frank Faylen

Recruiting Officer (uncredited)

Budd Fine

Survivor (uncredited)

Eddie Hart

Fisherman (uncredited)

Edward Hearn

Fisherman (uncredited)

Howard Hickman

Surgeon (uncredited)

Earle Hodgins

Fisherman (uncredited)

Charles Jordan

Signalman (uncredited)

Lew Kelly

Sailor (uncredited)

Milton Kibbee

Fisherman (uncredited)

Claire McDowell

Nurse (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)

Harry Semels

Cook on Tugboat (uncredited)

Lee Shumway

Sailor (uncredited)

Harry Strang

Shore Patrol Sailor (uncredited)

Hans von Morhart

German Sailor (uncredited)

Doodles Weaver

Sailor (uncredited)