Harald Leipnitz as Inspektor Craig

Klaus Kinski as Dave Emerson / Richard Emerson

Carl Lange as Dr. Albert Mangrove

Ilse Steppat as Lady Emerson

Hermann Lenschau as Rechtsanwalt Douglas

Diana Körner as Myrna Emerson

Gudrun Genest as Schwester Harris

Albert Bessler as Butler Anthony

Richard Haller as Edward Appleton / Die Blaue Hand

Ilse Pagé as Miss Mabel Finley

Fred Haltiner as Wärter Reynolds

Peter Parten as Robert Emerson

Thomas Danneberg as Charles Emerson

Heinz Spitzner as Richter

Siegfried Schürenberg as Sir John

Harry Riebauer as

Heinrich Gies as

Karin Kenklies as

Uschi Mood as

Günther Notthoff as

Otto Czarski as