Jakub Gold
Lucyna
Kazia, Malina's Niece
Józef Malina
"Professor" Pankrat
Fiałka / Jakub Gold (voice)
Jakub's Mother
Stasia
Genio
Prisoner (uncredited)
Wiśka (uncredited)
Zygmunt, Guest at Lucyna's Party (uncredited)
Guest at Lucyna's Party (uncredited)
Gestapo Officer (uncredited)
Woman Blackmailing Malina (uncredited)
Professor at a Lecture (uncredited)
Policeman (uncredited)
(uncredited)
The hero is a Jewish youth. He, like his family, has always been silent and undemonstrative in the face of prejudice. Now he stands up for his right to survive, and in so doing represents the fighting spirit that culminated in the Warsaw Uprising.