Cast
Cyd Hayman
Lucienne Englebert
Oskar Homolka
Hoofdcommissaris Samson
Werner Finck
Mankiewicz
Françoise Prévost
Arlette van der Valk
Günter Lamprecht
Bernard Neefs
Frank Finlay
Commissaris Simon "Piet" van der Valk
Françoise Arnoul
Solange de Winter
Pierre Vaneck
Stam
Hans Járay
Englebert
Hansjörg Felmy
(voice) (uncredited)