Stanisław Mikulski

Hans Kloss / Stanisław Kolicki

Seweryn Butrym

General Wierlinger ("I Know Who You Are")

Mieczysław Stoor

Sturmfuhrer Hans Stedtke ("I Know Who You Are")

Krzysztof Chamiec

Sturmbannfuhrer Lothar ("I Know Who You Are")

Janina Borońska

Irena ("I Know Who You Are")

Alicja Zommer

Doctor Marta Becher ("I Know Who You Are")

Wiktor Nanowski

Officer Interrogating Kloss ("I Know Who You Are")

Andrzej May

Jacek ("I Know Who You Are")