Victor Trivas Director, Screenwriter Horst Frank Dr. Brandt Actor Karin Kernke Schwester Irene Sander Actor Michel Simon Professor Dr. Abel Actor Paul Dahlke Police Commissioner Sturm Actor Helmut Schmid Bert Jaeger Actor Christiane Maybach Stella Actor Dieter Eppler Paul Lerner Actor Kurt Müller-Graf Dr. Walter Burke Actor Wolf C. Hartwig Executive Producer Willy Mattes Original Music Jacques Lasry Original Music Georg Krause Cinematographer Friedel Buckow Film Editing Bruno Monden Production Design Hermann Warm Production Design