- Ivan Desny - Jeweller
- Pinkas Braun - Dr. Wal
- Michelle Phillips - Vivian Nichols
- Claudia Mori - Donatella
- Wolfgang Preiss - Julius Prager
- Maurice Colbourne - Jon Swinton
- Marcel Bozzuffi - Man in Black
- Wulf Kessler - Young Sam Roffe
- Guy Rolfe - Tod Michaels
- Dietlinde Turban - Terenia
- Walter Kohut - Krauss
- Donald Symington - Henley
- Charles Millot - Commissaire Bloche
- Vadim Glowna - Dr. Emile Joeppli
- Hans von Borsody - Peasant Guard
- Derrick Branche - Chemin-de-fer Player
- Josef Fröhlich - Interpol Officer
- Klaus Guth - Coroner
- Dan van Husen - Cameraman
- Friedrich von Ledebur - Innkeeper
- Leslie Sands - Doctor
- Franziska Stömmer - Innkeeper
- Lisa Woska - Mrs. Wal
- Yves Barsacq - Bookseller
- Brigitte Döllerer - 1st Murder Victim
- Milda Jansen - 2nd Murder Victim
- Eleonore Melzer - 3rd Murder Victim
- Monika Vogl - Murder Victim
- Barrie Holland - Croupier (uncredited)
-
Alessio Liguori
-
Marco Belardi
Capítulo disponible en las siguientes plataformas:
