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")

Wanda Koczeska

Basia Reczko ("Top Secret")

Leon Niemczyk

Rioletto ("Top Secret")

Emil Karewicz

Hermann Brunner ("Top Secret")

Marian Opania

Kazik Truchanowicz ("Top Secret")

Tadeusz Kalinowski

Kreisleiter ("Top Secret")

Szczepan Baczyński

Old Man ("I Know Who You Are") (uncredited)

Jerzy Kaczmarek

Bruno Dreher ("I Know Who You Are") (uncredited)

Tadeusz Schmidt

Major Horst ("Top Secret") (uncredited)

Krystyna Feldman

Reil's Secretary ("Top Secret") (uncredited)