Cast
Franklyn Farnum
Federal Agent
Edward Peil Sr.
Policeman
Selmer Jackson
Maj. Henry Barton
Jack Rice
Fred, Jensen's Clerk
Eddie Parker
Chief Henchman Berck
Joe Caits
Messenger
Ken Carpenter
Newscaster
James Millican
Reporter Bill
Lee Phelps
Jailer
Trevor Bardette
Jensen
Clancy Cooper
Det. Sgt. Pat Flanagan
Jacqueline Dalya
Linda
Eddie Dunn
Weather Bureau Man
Alex Callam
Investigator Hogan
Lester Dorr
Otto Stahl
Chuck Hamilton
Henchman
Eddie Gribbon
First Mate
Peter Leeds
Henchman Carl Hiecke
Joseph Crehan
Police Chief Henry Burns
Eddie Kane
Coffee Shop Counterman
Frank LaRue
Weather Bureau Man
Rudolph Anders
Rudi Thysson
Gregory Gaye
Nazi Agent Feldon
George Lynn
Chief Stover
Tom London
Weather Bureau Guard
Charles Sullivan
Truck Driver
Kenne Duncan
Marvin
John Elliott
Prof. Clyde
Joseph W. Girard
Col. Drake
Anne Nagel
Jean Ashley
Ludwig Donath
Nazi Prof. Metzger
Lucien Prival
U-499 Commander
Frank Shannon
Police Commissioner
Sigfrid Tor
Lt. Kurtz
Dick Botiller
Hans Steufel
Kit Guard
Henchman Corrick
Steve Clark
Nazi Agent
Wade Boteler
Police Chief Burns
Stanley Brown
Police Lab Technician
Harry Strang
Henchman
Zon Murray
Military Policeman
Eddie Polo
Special Delivery Messenger
Charles Cahill Wilson
Desk Sgt. Cullen
Robert Fiske
Investigator Ryan
Ted Mapes
Nazi Agent
Paul Kelly
Lt. Dan Barton / The Black Commando
Lee Shumway
Police Dispatcher
Knox Manning
Narrator