Top Billed Cast

1. 

   Serge Merlin

   Jakub Gold

2. 

   Alina Janowska

   Lucyna

3. 

   Elżbieta Kępińska

   Kazia, Malina's Niece

4. 

   Jan Ciecierski

   Józef Malina

5. 

   Tadeusz Bartosik

   "Professor" Pankrat

6. 

   Władysław Kowalski

   Fiałka / Jakub Gold (voice)

7. 

   Irena Netto

   Jakub's Mother

8. 

   Beata Tyszkiewicz

   Stasia

9. 

   Jan Ibel

   Genio

10. 

    Bogumił Antczak

    Prisoner (uncredited)

11. 

    Wiesława Chojkowska

    Wiśka (uncredited)

12. 

    Edmund Fetting

    Zygmunt, Guest at Lucyna's Party (uncredited)

13. 

    Roland Głowacki

    Guest at Lucyna's Party (uncredited)

14. 

    Andrzej Herder

    Gestapo Officer (uncredited)

15. 

    Zygmunt Hübner

    Gestapo Officer (uncredited)

16. 

    Zofia Jamry

    Woman Blackmailing Malina (uncredited)

17. 

    Stanisław Jaśkiewicz

    Professor at a Lecture (uncredited)

18. 

    Zbigniew Józefowicz

    Guest at Lucyna's Party (uncredited)

19. 

    Edward Kowalczyk

    Policeman (uncredited)

20. 

    Zygmunt Listkiewicz

    (uncredited)

21. 

    Jerzy Łapiński

    Caroller (uncredited)

22. 

    Zdzisław Maklakiewicz

    ONR Member (uncredited)

23. 

    Zygmunt Malawski

    Printer (uncredited)

24. 

    Roman Polanski

    Partner of Malina's Blackmailer (uncredited)

25. 

    Ryszard Pracz

    (uncredited)

26. 

    Ryszard Ronczewski

    Prison Guard (uncredited)

27. 

    Magda Teresa Wójcik

    Woman at Lucyna's Party (uncredited)

28. 

    Tomasz Zaliwski

    Prisoner (uncredited)

29. 

    Andrzej Żuławski

    Killed Student (uncredited)