Józef Nowak
— Colonel Marczak
Mieczysław Czechowicz
— Captain Zawadzki
Jan Nowicki
— Captain Nawrot
Teresa Lipowska
— Krystyna Kacperska
Jerzy Kaczmarek
— Lieutenant Siwecki
Andrzej Krasicki
— Counterintelligence Officer
Jan Bielawski
— Counterintelligence Officer
Janusz Zakrzeński
— Janek
Bogdan Baer
— Ludwik Będziński
Bogusz Bilewski
— Witold Bracki
Jolanta Lothe
— Wanda
Alfred Freudenheim
— Janik's Killer
Bernard Michalski
— Jan Bernand Olecki / Bernand Michalski
Teodor Gendera
— Counterintelligence Officer
Janusz Guttner
— Wojciech Janik
Jadwiga Kuryluk
— Janik's Maid
Bolesław Płotnicki
— Henryk Hilman
Sylwester Przedwojewski
— Stefan Krawczyk
Wojciech Rajewski
— Pen Maker
Mieczysław Stoor
— Feldscher
Kazimierz Wichniarz
— Counterintelligence Agent
Jan Englert
— Cameraman (uncredited)
Jerzy Januszewicz
— Masseur (uncredited)
Bogumił Kobiela
— Chief Electrician (uncredited)
Bogdan Łysakowski
— Electrician (uncredited)
Ludwik Pak
— HR Man (uncredited)
Beata Tyszkiewicz
— Beata Tyszkiewicz (uncredited)