Bogumił Kobiela as Jan Piszczyk

Maria Ciesielska as Basia

Helena Dąbrowska as Wychówna

Barbara Lass as Jola

Krystyna Karkowska as Wrona-Wronska

Barbara Połomska as Zosia Jelonka

Irena Stalończyk as Irena Kropaczyńska

Tadeusz Bartosik as Wasik

Henryk Bąk as Director

Mariusz Dmochowski as UB Officer

Aleksander Dzwonkowski as Cezary Piszczyk

Edward Dziewoński as Jelonek

Tadeusz Janczar as Ens. Sawicki

Stanisław Jaworski as Watchmaker

Andrzej Krasicki as Witold Kropaczyński

Wojciech Litynski as Young Jan Piszczyk

Kazimierz Opaliński as Prison Warden

Jerzy Pichelski as Maj. Wrona-Wronski

Adam Pawlikowski as Ens. Osewski

Wojciech Siemion as Józef Kacperski

Jan Tadeusz Stanisławski as Chief Scout

Tadeusz Waczkowski as Manager Kozienicki

Karolina Borchardt as Woman (uncredited)

Krystyna Cierniak as Girl in the University Hall (uncredited)

Zbigniew Cynkutis as Officer (uncredited)

Jerzy Dobrowolski as Prison Clerk (uncredited)

Stanisław Dygat as (uncredited)

Jerzy Felczyński as Cadet in the Camp (uncredited)

Michał Gazda as (uncredited)

Jakub Goldberg as Jewish Storeowner (uncredited)

Wiesław Gołas as UB Officer (uncredited)

Zdzisław Halicki as Team Player (uncredited)

Maria Kaniewska as Anastazja Makulec (uncredited)

Roman Kłosowski as Piszczyk's Client (uncredited)

Krzysztof Komeda as Soldier (uncredited)

January Krawczyk as Conspirator (uncredited)

Henryk Kucharski as German Soldier (uncredited)

Zdzisław Leśniak as Man at a Gate (uncredited)

Zygmunt Listkiewicz as Sergeant (uncredited)

Jan Potocki as Mioduszewski (uncredited)

Mirosława Marcheluk as (uncredited)

Józef Nowak as Witold (uncredited)

Leopold Rene Nowak as Franek the Rickshaw Driver (uncredited)

Ryszard Ostałowski as Soldier in a Camp (uncredited)

Andrzej Paprotny as Child Jelonek (uncredited)

Czesław Piaskowski as Militiaman in Jelonek's Apartment (uncredited)

Leonard Pietraszak as Conspirator (uncredited)

Wojciech Pokora as Cadet in a Camp (uncredited)

Roman Polanski as Tutor (uncredited)

Sylwester Przedwojewski as Police Doctor (uncredited)

Sława Przybylska as Singer (uncredited)

Ryszard Ronczewski as Soldier transporting "Secret Weapons" (uncredited)

Andrzej Ropski as Kropaczyńska's Lover (uncredited)

Jerzy Ruśniaczek as (uncredited)

Witold Sadowy as Soldier imitating Hitler (uncredited)

Witold Skaruch as Young Piszczyk's Teacher (uncredited)

Wojciech Skibiński as Cadet Krawczyk (uncredited)

Kazimierz Stankiewicz as Train Passenger with a Basket (uncredited)

Kazimierz Wilamowski as General at a Parade (uncredited)

Ewa Wiśniewska as Student (uncredited)

Danuta Wodyńska as Julcia (uncredited)

Stanisław Wyszyński as Camp Prisoner (uncredited)

Barbara Horawianka as Irena Kropaczyńska (voice) (uncredited)