Franciszek Brodniewicz as Pan Twardowski Kazimierz Junosza-Stępowski as Satan Maria Bogda as Kasia Elżbieta Barszczewska as Neta / Pani Twardowska Mieczysława Ćwiklińska as Neta's Aunt Maria Malicka as Twardowski's Mother Zofia Lindorf as Queen Barbara Radziwiłłówna Józef Węgrzyn as King Zygmunt II August Jan Kurnakowicz as Maciek Stefan Jaracz as Master Maciej, Alchemist Bogusław Samborski as Neta's Fiancé Stanisław Sielański as Servant Tadeusz Wesołowski as Man in Court Michał Znicz as Judge