Zofia Mrozowska
Ewa Curie
Anna Ciepielewska
Maria Skłodowska-Curie
Piotr Pawłowski
Pierre Curie
Władysław Hańcza
Paweł Appel
Elżbieta Gaertner
Nurse
Danuta Gallert
Lab Worker
Renata Kossobudzka
American Journalist
Zofia Małynicz
Teacher
Wiesława Niemyska
Bronisława
Irena Oberska
Woman taking Maria's Reference Letter
Hanna Stankówna
Nurse
Stanisław Jaśkiewicz
School Headmaster
Maciej Maciejewski
Doctor
Lech Madaliński
Pierre's Father
Janusz Zakrzeński
Warsaw Science Society Member
Grzegorz Dubowski
Director
Jerzy Mrozewski
Director of Photography
Jan Zawierski
Music Arranger
Czesława Bitner
Makeup Artist
Janusz Magiera
Production Manager
Daniela Niemczynowska
Assistant Director
Jerzy Wojciechowski
Sound
Barbara Kniaziołucka
Editor
Krystyna Żurek
Makeup Artist
Stanisława Jeżewska
Makeup Artist
Hanna Okraskowa
Story Supervisor
Wiesław Stradomski
Production Manager
Józef Gruda
Screenplay
Jan Banucha
Production Design
Renata Bukowska
Makeup Artist
Józef Gruda
Director