Hipoteza

Jerzy Zelnik

Professor N.

Stanisława Celińska

Student / Worker / Patient / Painter

Danuta Rinn

Professor's Wife

Wanda Rucińska

Jerzy Kozłowski

(uncredited)

Tomasz Witt

Coachman (uncredited)

Edward Kłosiński

Director of Photography

Wojciech Kilar

Original Music Composer

Anna B. Sheppard

Costume Design

Janina Krassowska

Production Manager

Krzysztof Zanussi

Director, Screenplay

Witold Holtz

First Assistant Director

Halina Sieńska

Makeup Artist

Łucja Ośko

Assistant Editor

Urszula Śliwińska

Editor

Michal Sulkiewicz

Set Decoration

Wiesława Dembińska

Sound

Aleksander Goldbeck

Sound Assistant

Andrzej Borecki

Assistant Production Design

Jerzy Tomczuk

Assistant Camera

Teresa Barska

Production Design

Jerzy Buchwald

Production Manager

Jeremi Maruszewski

Assistant Production Manager

Maciej Falkowski

Assistant Director

Hanna Kosinska

Assistant Director

Konrad Bryzek

Conductor