Greer Garson
饰 Marie Curie
Walter Pidgeon
饰 Pierre Curie
Albert Bassermann
饰 Professor Jean Perot
Robert Walker
饰 David Le Gros
梅·惠蒂
饰 Madame Eugene Curie
Victor Francen
饰 President of University
Elsa Bassermann
饰 Madame Perot
Reginald Owen
饰 Dr. Becquerel
Margaret O'Brien
饰 Irene Curie - Age 5
詹姆斯·希尔顿
饰 Narration Spoken By (voice)
Mariska Aldrich
饰 Tall Woman (uncredited)
Tony Carson
饰 Man at Accident (uncredited)
Ruth Cherrington
饰 Swedish Queen (uncredited)
雷·柯林斯
饰 Lecturer (voice) (uncredited)
Guy D'Ennery
饰 Professor (uncredited)
乔治·戴维斯
饰 Cart Driver (uncredited)
Harold De Becker
饰 Professor (uncredited)
