Wojciech Pokora as Stanisław Maria Rochowicz / Marysia

Jolanta Bohdal as Kasia Rochowicz

Mieczysław Czechowicz as Professor

Maria Chwalibóg as Karpielowa

Jerzy Dobrowolski as Director

Wiesław Gołas as Wiesław Karpiel

Adam Mularczyk as Painter Bogdan Adamiec

Barbara Rylska as Director's Wife

Wojciech Siemion as Prosecutor

Jolanta Wołłejko as Nanny

Krystyna Borowicz as Górecka

Zofia Czerwińska as The Karpiels' Former Housekeeper

Jerzy Januszewicz as Man

Maria Kaniewska as Customer

Witold Kałuski as Górecki

Jan Kobuszewski as Plumber

Bohdan Łazuka as Engineer Rawicz

Tadeusz Pluciński as Coach

Wojciech Rajewski as Gallery Guard

Zbigniew Skowroński as Dog Owner

Zdzisław Szymański as Manhole Worker

Stanisław Bareja as Man Chasing Rochowicz (uncredited)

Juliusz Kalinowski as Urban Planner (uncredited)

Jan Kociniak as Director's Subordinate (uncredited)

Andrzej Krasicki as Museum Director (uncredited)

Bohdan Krzywicki as Party Guest (uncredited)

Filip Łobodziński as Antoś (uncredited)

Jerzy Moes as Party Guest (uncredited)

Stanisław Tym as Official Sealing Adamec's Painting (uncredited)

Michał Żołnierkiewicz as Tram Passenger (uncredited)