The Diamond Queen

Eileen Sedgwick

Doris Harvey

George Chesebro

Bruce Weston

Frank Clark

Julius Zeidt

Burton S. Wilson

John Harvey

Alfred Fisher

Professor Harvey

Josephine Scott

Aline Earl

Lew Short

Reitman

Albert J. Smith

Professor Ramsey

Edward A. Kull

Réalisation

Jacques Futrelle

Histoire

George W. Pyper

Adaptation

Robert F Roden

Adaptation