Ewa Żukowska

as Niedźwiecka

as Maria

as Secretary (uncredited)

as Mierzwowa

as żona profesora

as Barbara Różycka

as Olga Kolářová

as Halina Wielowiejska

as Ilona Iwicka

as Irenka, pracownica w zakładzie prefabrykacji

as Robert's mother

as (voice)