Paul Kelly

Lt. Dan Barton / The Black Commando

Anne Nagel

Jean Ashley

Trevor Bardette

Jensen

Rudolph Anders

Rudi Thysson

Clancy Cooper

Det. Sgt. Pat Flanagan

Gregory Gaye

Nazi Agent Feldon

Ludwig Donath

Nazi Prof. Metzger

Beal Wong

Quito

Eddie Parker

Chief Henchman Berck

Wade Boteler

Police Chief Burns

Charles C. Wilson

Desk Sgt. Cullen

Alex Callam

Investigator Hogan

Robert Fiske

Investigator Ryan

Selmer Jackson

Maj. Henry Barton

Jacqueline Dalya

Linda

Jack Gardner

F. Wolper

Kenne Duncan

Marvin

George Lynn

Chief Stover

Frank Shannon

Police Commissioner

Gus Glassmire

Mr. Stevens

John Elliott

Prof. Clyde

Jack Rice

Fred, Jensen's Clerk

Sigfrid Tor

Lt. Kurtz

Joseph W. Girard

Col. Drake

Dick Botiller

Hans Steufel

Lucien Prival

U-499 Commander

Rose Plumer

Flower Woman Spy

Lester Dorr

Otto Stahl

Peter Leeds

Henchman Carl Hiecke

Kit Guard

Henchman Corrick

Warren Jackson

Ralph

Henry Lysing

Code Lessons

Lee Shumway

Police Dispatcher

Roy Brent

The Military Policeman

Stanley Brown

Police Lab Technician

Joe Caits

Messenger

Ken Carpenter

Newscaster

Steve Clark

Nazi Agent

Joseph Crehan

Police Chief Henry Burns

Eddie Dunn

Weather Bureau Man

Franklyn Farnum

Federal Agent

Eddie Gribbon

First Mate

Chuck Hamilton

Henchman

Jack Hendricks

Henchman

Eddie Kane

Coffee Shop Counterman

Frank LaRue

Weather Bureau Man

Tom London

Weather Bureau Guard

Knox Manning

Narrator

Ted Mapes

Nazi Agent

Frank McCarroll

Military Policeman

James Millican

Reporter Bill

Zon Murray

Military Policeman

Edward Peil Sr.

Policeman

Lee Phelps

Jailer

Eddie Polo

Special Delivery Messenger

Dick Rush

Policeman

Tom Steele

Federal Agent

Bobby Stone

Newsboy

Harry Strang

Henchman

Charles Sullivan

Truck Driver

Wally West

Policeman

Eddie Woods

Henchman Kurt

Bert Young

Henchman