Ola Kos
Bronka (as Monika Bolibrzuch)
Maciek Ankiewicz
Jacek Zybiga
Wojtek Marciniak
Tomek
Marcys Siedlecki
Professor Olszyna
Worker Heniek (as Zdzislaw Sosnierz)
Tomek's Grandfather
Headmistress
Teacher
Ola's Father
Prymus
Palacz
Ela, Heniek's Wife
Factory Manager Haneman
Speaker at the Demonstration
Magda
Student
Socialist Youth Organization Member
University Student (as Beata Wnek)
Teacher (uncredited)