- Igor Śmiałowski - Erwin Reil ("Top Secret")
- Leon Niemczyk - Rioletto ("Top Secret")
- Emil Karewicz - Hermann Brunner ("Top Secret")
- Lech Ordon - Puschke ("Top Secret")
- Marian Opania - Kazik Truchanowicz ("Top Secret")
- Jerzy Walczak - Edward ("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)
- Janusz Morgenstern
- Jacek Butrymowicz
- Helena Bialecka
- Zbigniew Safjan
- Maria Burdecka
- Jerzy Matuszkiewicz
- Józef Koprowicz
Stanisław Mikulski interpreta a Hans Kloss / Stanislaw Kolicki en la película.
Seweryn Butrym hace el papel de General Wierlinger ("I Know Who You Are").
Mieczysław Stoor hace el papel de Sturmfuhrer Hans Stedtke ("I Know Who You Are").
Krzysztof Chamiec hace el papel de Sturmbannfuhrer Lothar ("I Know Who You Are").
Janina Borońska interpreta a Irena ("I Know Who You Are") en la película.
Alicja Zommer interpreta a Doctor Marta Becher ("I Know Who You Are") en la película.
Wiktor Nanowski interpreta a Officer Interrogating Kloss ("I Know Who You Are") en la película.
Andrzej May interpreta a Jacek ("I Know Who You Are") en la película.
Wanda Koczeska interpreta a Basia Reczko ("Top Secret") en la película.
Igor Śmiałowski hace el papel de Erwin Reil ("Top Secret").
Leon Niemczyk hace el papel de Rioletto ("Top Secret").
Emil Karewicz interpreta a Hermann Brunner ("Top Secret") en la película.
Lech Ordon interpreta a Puschke ("Top Secret") en la película.
Marian Opania interpreta a Kazik Truchanowicz ("Top Secret") en la película.
Jerzy Walczak hace el papel de Edward ("Top Secret").
Tadeusz Kalinowski hace el papel de Kreisleiter ("Top Secret").
Mieczysław Waśkowski interpreta a Scharfuhrer Glaubel ("Top Secret") en la película.
Szczepan Baczyński interpreta a Old Man ("I Know Who You Are") (uncredited) en la película.
Jerzy Balbuza interpreta a Soviet Intelligence Agent ("I Know Who You Are") (uncredited) en la película.
Jacek Butrymowicz interpreta a Secret Agent ("I Know Who You Are") (uncredited) en la película.
Jerzy Czupryniak interpreta a Officer Questioning Kolicki ("I Know Who You Are") (uncredited) en la película.
Marek Dąbrowski interpreta a Fritz ("I Know Who You Are") (uncredited) en la película.
Henryk Dudziński interpreta a Soviet Lieutenant ("I Know Who You Are") (uncredited) en la película.
Mieczysław Gajda interpreta a Helmuth ("I Know Who You Are") (uncredited) en la película.
Andrzej Herder interpreta a SS Soldier / Hans Kloss (voice) en la película.
Andrzej Jędrzejewski interpreta a SS Officer ("I Know Who You Are") (uncredited) en la película.
Jerzy Kaczmarek interpreta a Bruno Dreher ("I Know Who You Are") (uncredited) en la película.
Juliusz Lubicz-Lisowski hace el papel de Soviet Colonel ("I Know Who You Are") (uncredited).
Zygmunt Malawski interpreta a Heinrich Vogel ("I Know Who You Are") (uncredited) en la película.
Zygmunt Nowicki hace el papel de German Gendarme ("I Know Who You Are") (uncredited).
Zbigniew Płoszaj interpreta a SS Soldier / Fritz ("I Know Who You Are") (uncredited) en la película.
Czesław Przybyła interpreta a Prison Barber ("I Know Who You Are") (uncredited) en la película.
Edward Radulski interpreta a Kloss' Cellmate ("I Know Who You Are") (uncredited) en la película.
Jan Rudnicki interpreta a Helmut Kloss ("I Know Who You Are") (uncredited) en la película.
Marek Sobczyk interpreta a Captain ("I Know Who You Are") (uncredited) en la película.
Bohdan Sobiesiak interpreta a Deciphering Lieutenant ("I Know Who You Are") (uncredited) en la película.
Ryszard Sobolewski interpreta a General's Adjutant ("I Know Who You Are") (uncredited) en la película.
Mirosław Szonert hace el papel de SS Officer ("I Know Who You Are") (uncredited).
Jerzy Szpunar hace el papel de Lothar Beitz ("I Know Who You Are") (uncredited).
Natalia Szymańska interpreta a Old Woman ("I Know Who You Are") (uncredited) en la película.
Jan Tesarz interpreta a Stedtke's Snitch ("I Know Who You Are") (uncredited) en la película.
Janusz Ziejewski hace el papel de German Colonel ("I Know Who You Are") (uncredited).
Tadeusz Schmidt hace el papel de Major Horst ("Top Secret") (uncredited).
Krystyna Feldman interpreta a Reil's Secretary ("Top Secret") (uncredited) en la película.
Andrzej Jurga hace el papel de Partisan ("Top Secret") (uncredited).
Jan Koecher hace el papel de Doktor Pulkowski ("Top Secret") (uncredited).
Małgorzata Lorentowicz hace el papel de Kreisleiter's Wife ("Top Secret") (uncredited).
Tadeusz Ordeyg interpreta a Party Guest ("Top Secret") (uncredited) en la película.
Zdzisław Salaburski interpreta a Partisan ("Top Secret") (uncredited) en la película.
Tadeusz Teodorczyk interpreta a Mailman ("Top Secret") (uncredited) en la película.
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