Robert Paige

Hal Andrews / The Black Falcon

Richard Fiske

Bart Davis

James Craig

John Cummings

Lorna Gray

Babs McKay

Sammy McKim

Billy McKay

Stanley Brown

Charles Bronson

Don Beddoe

W. S. Hamilton

Forbes Murray

Marvin Brewster / The Professor

Lee Prather

Simmons

Beatrice Blinn

Brewster's Secretary

Ann Doran

Hamilton's Secretary

Dick Curtis

Korman

Eddie Laughton

Hall

John Tyrrell

Williams

Eddie Fetherston

Borden

John Dilson

Dr. Alexander Craig