Marian Opania
Tadeusz Kasprzak
Aleksander Benczak
Bolesław Kasprzak
Grażyna Chęcińska
Grażyna Cyganiewicz
Maciej Englert
Andrzej
Henryk Hunko
Potter
Kazimierz Iwiński
Exam Board Chairman
Celina Klimczak
Tadeusz's Mother
Wiesława Kosmalska
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)