Zygmunt Malawski

Director

Izabella Pienkowska

Irka

Jerzy Przybylski

Actor

Edward Rączkowski

Philosopher

Magda Teresa Wójcik

Choir Director

Janusz Zaorski

Alfred Cyganiewicz

Jerzy Block

Patient

Irena Burawska

Patient

Barbara Chojecka

Patient

Jerzy Czupryniak

Maciej Grzybowski

Patient

Marian Harasimowicz

Lech Jagiełło

Patient

Jerzy Januszewicz

Patient

Irena Jun

Patient

Cezary Juszyński

Patient

Stanisław Marian Kamiński

Guard

Ludwik Kasendra

Exam Board Member

Marek Kostrzewski

Bożena Miefiodow

Patient

Bohdana Majda

Actress

Ewa Milde

Actress

Jerzy Moes

Actor

Wiesław Mirewicz

Edward Miłosz

Eugeniusz Rawski

Patient

Włodzimierz Saar

Stanisław Sparażyński

Exam Board Member

Lena Wilczyńska

Patient

Tadeusz Schmidt

(uncredited)

Romuald Drobaczyński

Patient (uncredited)

Jerzy Jogałła

Assistant (uncredited)

Leszek Kowalewski

Patient (uncredited)

Antoni Krauze

Art Instructor (uncredited)

Michał Szewczyk

Actor (uncredited)

Jan Zdrojewski

Exam Board Member (uncredited)

Tadeusz Teodorczyk

Bolesław Kasprzak (voice) (uncredited)