Directed by Harald Reinl Written by Will Tremper Joachim Fuchsberger as Johnny Gray Karin Dor as Denise Richard Häussler as Joe Legge Walter Rilla as Sir Marney Siegfried Schürenberg as Sir John Kai Fischer as Pia Pasani Benno Hoffmann as Blackstone-Edward Bruno W. Pantel as Sergeant Horse Kurd Pieritz as Inspector Terrence Erik Radolf as Ambrose Eddi Arent as Dr. Higgins Hans Clarin as Mr. Igle Jur Arten as Gangster Jakob Arthur Binder as Slim Elfi Estell as Wanda Rena Horten as Blond Eberhard Junkersdorf as razor blade killer Valentin Klaus as Blockstellenwärter Manfred Meurer as Gangster Tino Meurer as waiter