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