Warren Hymer

As

Seaman Rocky Haggerty

Douglas Fowley

As

Seaman Pinky Brett

Dick Hogan

As

Seaman Johnny Miller

Elisha Cook Jr.

As

Seaman Rutherford Davis Pratt, aka 'The Professor'

George E. Stone

As

Seaman Irving Goldfarb

John Carradine

As

McAllison

Ward Bond

As

Seaman Olaf Swanson

Moroni Olsen

As

The Fleet Captain

Charles Trowbridge

As

RAdm. Joseph Maitland

Maxie Rosenbloom

As

Marine Sentry Sgt. Joe Duffy

Joan Valerie

As

Anne

Henry Armetta

As

Luigi

Jack Pennick

As

Bos'un 'Guns' McPeek

Robert Lowery

As

Sparks, radioman

Harry Strang

As

Seaman Grainger

Victor Varconi

As

Italian Naval Chaplain Vanzano

Charles Tannen

As

Undetermined Part (script name, Kelly)

Murray Alper

As

Orderly in Maitland's Office

Lon Chaney Jr.

As

Marine Sentry

Dorothy Christy

As

McPeek's Girl

E. E. Clive

As

Fred Malatesta

As

Italian Gendarme at the 'Maria Ann'

Frank Moran

As

Waiter at Dive

Manuel París

As

Italian Gendarme at the 'Maria Ann'

Ferdinand Schumann-Heink

As

German Officer

Dick Wessel

As

Dock Shore Patrolman (facing camera)