 Lidia WysockaIrena Majewska | Irena Majewska |
 Adolf DymszaZygmunt Majewski | Zygmunt Majewski |
| MMichał KilińskiJanek, Son of Majewski | Janek, Son of Majewski |
 Helena BuczyńskaNowakowa | Nowakowa |
 Ludwik SempolińskiKotowski | Kotowski |
 Hanka BielickaKwiatkowska | Kwiatkowska |
 Kazimierz BrusikiewiczMiecio | Miecio |
 Zofia PerczyńskaKrystyna, Władek's fiancée | Krystyna, Władek's fiancée |
 Włodzimierz SkoczylasWładek | Władek |
 Irena BrodzińskaManicurist in a barber shop, Majewski's neighbor | Manicurist in a barber shop, Majewski's neighbor |
 Urszula HałacinskaNot listed | Not listed |
 Bronisław DarskiInżynier Banasik | Inżynier Banasik |
 Michał GazdaKazimierz, a neighbor helping Irena to learn | Kazimierz, a neighbor helping Irena to learn |
 Stanisław JaworskiSalesman in a toy store | Salesman in a toy store |
 Maria KoterbskaSinger | Singer |
 Barbara JakubowskaTaxi driver | Taxi driver |
 Irena SkwierczyńskaMajewski's neighbor | Majewski's neighbor |
| SStefan WitasHead in the Mechanical Equipment Works | Head in the Mechanical Equipment Works |
 Stanisław WolińskiOlech, Majewski's neighbor | Olech, Majewski's neighbor |
 Władysław DewoynoDriving Instructor (uncredited) | Driving Instructor (uncredited) |
 Henryk HunkoA man at a picnic (uncredited) | A man at a picnic (uncredited) |
 Stanisław IgarHairdresser (uncredited) | Hairdresser (uncredited) |
 Ignacy MachowskiHairdresser Zygmunt (uncredited) | Hairdresser Zygmunt (uncredited) |
| RRoman MikułaA man operating a carousel (uncredited) | A man operating a carousel (uncredited) |
 Józef PierackiWorker in the workshop of Transport Company (uncredited) | Worker in the workshop of Transport Company (uncredited) |
 Wojciech PilarskiMilitiaman (uncredited) | Militiaman (uncredited) |
| HHelena PuchniewskaWoman in a Cafe (uncredited) | Woman in a Cafe (uncredited) |
 Tadeusz SchmidtHusband of Marysia Lewandowska (uncredited) | Husband of Marysia Lewandowska (uncredited) |