Hipoteza

Jerzy Kozłowski as (uncredited) Jerzy Zelnik as Professor N. Stanisława Celińska as Student / Worker / Patient / Painter

Witold Holtz First Assistant Director Krzysztof Zanussi Director, Screenplay Edward Kłosiński Director of Photography Jerzy Buchwald Production Manager Teresa Barska Production Design Anna B. Sheppard Costume Design Andrzej Borecki Assistant Production Design