Jakob Gold

Serge Merlin

Lucyna

Alina Janowska

Kazia, Malina's Niece

Elżbieta Kępińska

Józef Malina

Jan Ciecierski

Fiałka / Jakub Gold (voice)

Władysław Kowalski

"Professor" Pankrat

Tadeusz Bartosik

Jakub's Mother

Irena Netto

Stasia, wlascicielka fotoplastikonu

Beata Tyszkiewicz

Genio

Jan Ibel

Prisoner (uncredited)

Bogumił Antczak

Zygmunt, Guest at Lucyna's Party (uncredited)

Edmund Fetting

Guest at Lucyna's Party (uncredited)

Roland Głowacki

Gestapo Officer (uncredited)

Andrzej Herder

Gestapo Officer (as Zygmunt Hubner)

Zygmunt Hübner

Woman Blackmailing Malina (uncredited)

Zofia Jamry

Guest at Lucyna's Party (uncredited)

Zbigniew Józefowicz

Policeman (uncredited)

Edward Kowalczyk

Professor at a Lecture (uncredited)

Stanisław Jaśkiewicz

Caroller (uncredited)

Jerzy Łapiński

(uncredited)

Zygmunt Listkiewicz

ONR Member (uncredited)

Zdzisław Maklakiewicz

Printer (uncredited)

Zygmunt Malawski

Partner of Malina's Blackmailer (uncredited)

Roman Polanski

(uncredited)

Ryszard Pracz

Prison Guard (uncredited)

Ryszard Ronczewski

Woman at Lucyna's Party (uncredited)

Magda Teresa Wójcik

Wiska

Krystyna Zachwatowicz

Prisoner (uncredited)

Tomasz Zaliwski

Killed Student (uncredited)

Andrzej Żuławski