Marie Curie
Pierre Curie
Eugene Curie
Professor Jean Perot
David Le Gros
Lord Kelvin
Madame Eugene Curie
President of University
Madame Perot
Dr. Becquerel
Reporter
Irene Curie - Age 5
Narration Spoken By (voice)
Tall Woman (uncredited)
Man at Accident (uncredited)
Swedish Queen (uncredited)
Lecturer (voice) (uncredited)
Professor (uncredited)
Cart Driver (uncredited)
Professor (uncredited)
Assistant Tailor (uncredited)
Woman at Accident (uncredited)
Man at Accident (uncredited)
Cart Driver (uncredited)
Board Member (uncredited)
Man at Accident (uncredited)
Board Member (uncredited)
Prof. Constant (voice) (uncredited)
Perot Granddaughter (uncredited)
Perot Granddaughter (uncredited)
Lucille (uncredited)
Seamstress (uncredited)
Professor Roget (uncredited)
Son (uncredited)
Board Member (uncredited)
Woman at Accident (uncredited)
Bit Part (uncredited)
Businessman (uncredited)
Singing Professor (uncredited)
Master Michaud (uncredited)
Wedding Guest (uncredited)
Photographer (uncredited)
Dr. Bladh (uncredited)
President of Businessman's Board (uncredited)
Woman at Accident (uncredited)
Eve at 18 Months (uncredited)
Monsieur Michaud (uncredited)
Woman at Accident (uncredited)
Nurse (uncredited)
Madame Michaud (uncredited)
Businessman (uncredited)
King Oscar (uncredited)
Driver (uncredited)
Board Member (uncredited)
Proud Papa (uncredited)
Jewelry Salesman (uncredited)
Businessman (uncredited)
Doctor (uncredited)