Hipoteza

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

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