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