 Jadwiga ChojnackaAniela Spojdzina | Aniela Spojdzina |
 Adam MikołajewskiFeliks Spojda | Feliks Spojda |
 Janusz JarońEngineer Studziński | Engineer Studziński |
 Jerzy PietraszkiewiczEngineer Góracz | Engineer Góracz |
 Władysław WoźnikWładysław Woźniak | Władysław Woźniak |
 Władysław WalterMeister Stypuła | Meister Stypuła |
| AAnna RosiakHania | Hania |
 Leopold Rene NowakTomek Spojda | Tomek Spojda |
 Bogdan NiewinowskiJurek Zaręba | Jurek Zaręba |
 Stanisław MikulskiFranek Mazur | Franek Mazur |
| WWieslaw WilkRyszard Wichniewski | Ryszard Wichniewski |
| JJanina DraczewskaMother | Mother |
 Wanda JakubińskaHania's Mother | Hania's Mother |
| HHelena PuchniewskaBarmaid | Barmaid |
 Wiesław MichnikowskiAntek Bielecki | Antek Bielecki |
 Zygmunt NowickiNot listed | Not listed |
| JJanusz ŚciwiarskiMiecznikowski | Miecznikowski |
| TTadeusz GóraPilot | Pilot |
| BBogdan TuszynskiTomek's Friend | Tomek's Friend |
 Jerzy AntczakCommitee Meeting Chairman (uncredited) | Commitee Meeting Chairman (uncredited) |
 Teresa LipowskaYoung Girl (uncredited) | Young Girl (uncredited) |
 Stanisław MichalskiBoy-Scout (uncredited) | Boy-Scout (uncredited) |
