Police battle against a gang of blackmailers known as The Crimson Circle.
Lya Mara
Thalia Drummond
Fred Louis Lerch
Jack Birdmore
Stewart Rome
Derrick Yale
Albert Steinrück
Froyant
John Castle
Inspektor Parr
Otto Wallburg
Marl
Hans Albers
Diener von Marl
Hans Marlow
Birdmore
Otto Treßler
Ministerpräsident
Ilka Grüning
Eine Vermieterin
Frederik Fuglsang
Director of Photography
Luis Domke
Assistant Director
Edgar Wallace
Novel
Edmund Meisel
Music
Frederic Zelnik
Producer
Howard Caye
Writer
Director
Robert A. Dietrich
Art Direction
Fanny Carlsen
Leslie Rowson
