 | Henryk Talar as Tadeusz |
 | Ewa Borowik as Katarzyna |
 | Edmund Fetting as Professor |
 | Jerzy Kamas as Major "Kazimierz" |
 | Emil Karewicz as Lieutenant "Florian" |
 | Anna Milewska as Tadeusz and Witek's mother |
 | Erwin Nowiaszak as Szulc |
 | Andrzej Precigs as Witek |
 | Mieczysław Voit as Samuel Blum |
 | Wiesław Gołas as Soldier |
 | Eugeniusz Kamiński as Resistance fighter |
 | Katarzyna Łaniewska as Fugitive |
 | Tomasz Zaliwski as Polish Army Lieutenant |
 | Bogusław Sar as Szulc's translator |
| Stanisław Symonowicz |
 | Wojciech Zagórski |
 | Wiktor Zborowski |
| Stefania Błońska |
| Joanna Ciemniewska |
 | Marek Dąbrowski |
 | Zygmunt Fok as German soldier (credited as H. Fok) |
 | Waldemar Kownacki as Resistance fighter giving out clothes |
 | Ryszard Nadrowski |
 | Jan Orsza-Łukasiewicz |
 | Marek Prałat |
 | Andrzej Prus as German soldier |
| A. Rutkowska |
 | Jolanta Skubniewska |
 | Bogdan Śmigielski |
| Edward Tymiński |
 | Jadwiga Colonna-Walewska |
 | Andrzej Wiśniewski |
 | Helena Wizło-Sztark |
| Kazimierz Wójcikowski |
 | Mieczysław Hryniewicz as Sick man (uncredited) |
 | Czesław Mroczek as Resistance fighter (uncredited) |
 | Szymon Pawlicki as Resistance fighter (uncredited) |
 | Jacek Strzemżalski as Man trying to cross the other side of the Vistula (uncredited) |
