Casts
Wolfgang Kieling
as Commissaris Simon "Piet" van der Valk
Catherine Schell
as Sophie Ray
William Marlowe
as Martin Ray
Guy Deghy
as Will Munch
Liesbeth Struppert
as Dr Tulp
Piet Römer
as Detective
Onno Molenkamp
as Henk
Peter Burton
as Herman Ketelboer
André van den Heuvel
as Professor Comerius
