When the Light Goes Dark

Adelqui Migliar

as Pietro Cignoni

Annie Bos

as Sylvia van Haaften

Lola Cornero

as Lyda van Haaften

Jan van Dommelen

as Gio Romano

Frits Bouwmeester jr.

as Rosni

Paula de Waart

as Rosni's moeder

Cor Smits

as Professor

Renee Spiljar

as Renee

Marie Spiljar

as Kindermeisje

Ernst Winar