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")
Wanda Koczeska
Basia Reczko ("Top Secret")
Igor Śmiałowski
Erwin Reil ("Top Secret")
Emil Karewicz
Hermann Brunner ("Top Secret")
Marian Opania
Kazik Truchanowicz ("Top Secret")
Tadeusz Kalinowski
Kreisleiter ("Top Secret")
Mieczysław Waśkowski
Scharfuhrer Glaubel ("Top Secret")
Szczepan Baczyński
Old Man ("I Know Who You Are") (uncredited)
Jerzy Balbuza
Soviet Intelligence Agent ("I Know Who You Are") (uncredited)
Jacek Butrymowicz
Secret Agent ("I Know Who You Are") (uncredited)
Jerzy Czupryniak
Officer Questioning Kolicki ("I Know Who You Are") (uncredited)
Marek Dąbrowski
Fritz ("I Know Who You Are") (uncredited)
Henryk Dudziński
Soviet Lieutenant ("I Know Who You Are") (uncredited)
Mieczysław Gajda
Helmuth ("I Know Who You Are") (uncredited)
Andrzej Herder
SS Soldier / Hans Kloss (voice)
Andrzej Jędrzejewski
SS Officer ("I Know Who You Are") (uncredited)
Jerzy Kaczmarek
Bruno Dreher ("I Know Who You Are") (uncredited)
Juliusz Lubicz-Lisowski
Soviet Colonel ("I Know Who You Are") (uncredited)
Zygmunt Malawski
Heinrich Vogel ("I Know Who You Are") (uncredited)
Zygmunt Nowicki
German Gendarme ("I Know Who You Are") (uncredited)
Zbigniew Płoszaj
SS Soldier / Fritz ("I Know Who You Are") (uncredited)
Czesław Przybyła
Prison Barber ("I Know Who You Are") (uncredited)
Edward Radulski
Kloss' Cellmate ("I Know Who You Are") (uncredited)
Jan Rudnicki
Helmut Kloss ("I Know Who You Are") (uncredited)
Marek Sobczyk
Captain ("I Know Who You Are") (uncredited)
Bohdan Sobiesiak
Deciphering Lieutenant ("I Know Who You Are") (uncredited)
Ryszard Sobolewski
General's Adjutant ("I Know Who You Are") (uncredited)
Mirosław Szonert
SS Officer ("I Know Who You Are") (uncredited)
Jerzy Szpunar
Lothar Beitz ("I Know Who You Are") (uncredited)
Natalia Szymańska
Old Woman ("I Know Who You Are") (uncredited)
Jan Tesarz
Stedtke's Snitch ("I Know Who You Are") (uncredited)
Janusz Ziejewski
German Colonel ("I Know Who You Are") (uncredited)
Tadeusz Schmidt
Major Horst ("Top Secret") (uncredited)
Krystyna Feldman
Reil's Secretary ("Top Secret") (uncredited)
Andrzej Jurga
Partisan ("Top Secret") (uncredited)
Jan Koecher
Doktor Pulkowski ("Top Secret") (uncredited)
Małgorzata Lorentowicz
Kreisleiter's Wife ("Top Secret") (uncredited)
Tadeusz Ordeyg
Party Guest ("Top Secret") (uncredited)
Zdzisław Salaburski
Partisan ("Top Secret") (uncredited)
Tadeusz Teodorczyk
Mailman ("Top Secret") (uncredited)
