Cast
Stanley Brown
Charles Bronson
Forbes Murray
Marvin Brewster / The Professor
Ann Doran
Hamilton's Secretary
Dick Curtis
Korman
Eddie Fetherston
Borden
Robert Paige
Hal Andrews / The Black Falcon
Richard Fiske
Bart Davis
James Craig
John Cummings
Lorna Gray
Babs McKay
Beatrice Blinn
Brewster's Secretary
Eddie Laughton
Hall
Sammy McKim
Billy McKay
Don Beddoe
W. S. Hamilton
John Dilson
Dr. Alexander Craig
John Tyrrell
Williams