Calificación
Reparto

Richard Conte
Bill Locklin

Rona Anderson
Julia Jackson

Russell Napier
Supt. John Harrington

Sylva Langová
Hilde Heller, chief spy

Colin Gordon
Harry Martin - reporter

Donald Bisset
Editor Harris

John King-Kelly
Spy Henchman

Bernard Rebel
Vinson - Spy Henchman

Arnold Marlé
Prof. Leon Dushenko

John Horsley
Det. Sgt. Gibson

Jane Welsh
Supt. McCollum - sanitarium

Aimée Delamain
Mrs. Henley