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)
Assistant Tailor (uncredited)
Woman at Accident (uncredited)
