Character Name : Marie Curie

Original Name : Greer Garson

Gender : Female

Character Name : Pierre Curie

Original Name : Walter Pidgeon

Gender : Male

Character Name : Eugene Curie

Original Name : Henry Travers

Gender : Male

Character Name : Professor Jean Perot

Original Name : Albert Bassermann

Gender : Male

Character Name : David Le Gros

Original Name : Robert Walker

Gender : Male

Character Name : Lord Kelvin

Original Name : C. Aubrey Smith

Gender : Male

Character Name : Madame Eugene Curie

Original Name : May Whitty

Gender : Female

Character Name : President of University

Original Name : Victor Francen

Gender : Male

Character Name : Madame Perot

Original Name : Elsa Bassermann

Gender : Female

Character Name : Dr. Becquerel

Original Name : Reginald Owen

Gender : Male

Character Name : Reporter

Original Name : Van Johnson

Gender : Male

Character Name : Irene Curie - Age 5

Original Name : Margaret O'Brien

Gender : Female

Character Name : Narration Spoken By (voice)

Original Name : James Hilton

Gender : Male

Character Name : Tall Woman (uncredited)

Original Name : Mariska Aldrich

Gender : Female

Character Name : Man at Accident (uncredited)

Original Name : Tony Carson

Gender : Male

Character Name : Swedish Queen (uncredited)

Original Name : Ruth Cherrington

Gender : Female

Character Name : Lecturer (voice) (uncredited)

Original Name : Ray Collins

Gender : Male

Character Name : Professor (uncredited)

Original Name : Guy D'Ennery

Gender : Male

Character Name : Cart Driver (uncredited)

Original Name : George Davis

Gender : Male

Character Name : Professor (uncredited)

Original Name : Harold De Becker

Gender : Male

Character Name : Assistant Tailor (uncredited)

Original Name : Franz Dorfler

Gender : Male

Character Name : Woman at Accident (uncredited)

Original Name : Justine Duney

Gender : Male

Character Name : Man at Accident (uncredited)

Original Name : Tay Dunn

Gender : Male

Character Name : Cart Driver (uncredited)

Original Name : William Edmunds

Gender : Male

Character Name : Board Member (uncredited)

Original Name : Nestor Eristoff

Gender : Male

Character Name : Man at Accident (uncredited)

Original Name : Al Ferguson

Gender : Male

Character Name : Board Member (uncredited)

Original Name : Edward Fielding

Gender : Male

Character Name : Prof. Constant (voice) (uncredited)

Original Name : Howard Freeman

Gender : Male

Character Name : Perot Granddaughter (uncredited)

Original Name : Linda Lee Gates

Gender : Male

Character Name : Perot Granddaughter (uncredited)

Original Name : Marie Louise Gates

Gender : Male

Character Name : Lucille (uncredited)

Original Name : Lisa Golm

Gender : Female

Character Name : Seamstress (uncredited)

Original Name : Ilka Grüning

Gender : Female

Character Name : Professor Roget (uncredited)

Original Name : Lumsden Hare

Gender : Male

Character Name : Son (uncredited)

Original Name : Teddy Infuhr

Gender : Male

Character Name : Board Member (uncredited)

Original Name : James Kirkwood

Gender : Male

Character Name : Woman at Accident (uncredited)

Original Name : Isabel La Mal

Gender : Female

Character Name : Bit Part (uncredited)

Original Name : Gene Lockhart

Gender : Male

Character Name : Businessman (uncredited)

Original Name : Miles Mander

Gender : Male

Character Name : Singing Professor (uncredited)

Original Name : George Meader

Gender : Male

Character Name : Master Michaud (uncredited)

Original Name : Dickie Meyers

Gender : Male

Character Name : Wedding Guest (uncredited)

Original Name : Noel Mills

Gender : Male

Character Name : Photographer (uncredited)

Original Name : Leo Mostovoy

Gender : Male

Character Name : Dr. Bladh (uncredited)

Original Name : Alan Napier

Gender : Male

Character Name : President of Businessman's Board (uncredited)

Original Name : Moroni Olsen

Gender : Male

Character Name : Woman at Accident (uncredited)

Original Name : María Pagés

Gender : Male

Character Name : Eve at 18 Months (uncredited)

Original Name : Gigi Perreau

Gender : Female

Character Name : Monsieur Michaud (uncredited)

Original Name : Francis Pierlot

Gender : Male

Character Name : Woman at Accident (uncredited)

Original Name : Nita Pike

Gender : Male

Character Name : Nurse (uncredited)

Original Name : Dorothy Raye

Gender : Male

Character Name : Madame Michaud (uncredited)

Original Name : Almira Sessions

Gender : Female

Character Name : Businessman (uncredited)

Original Name : Arthur Shields

Gender : Male

Character Name : King Oscar (uncredited)

Original Name : Wyndham Standing

Gender : Male

Character Name : Driver (uncredited)

Original Name : Ray Teal

Gender : Male

Character Name : Board Member (uncredited)

Original Name : Charles Trowbridge

Gender : Male

Character Name : Proud Papa (uncredited)

Original Name : Michael Visaroff

Gender : Male

Character Name : Jewelry Salesman (uncredited)

Original Name : Marek Windheim

Gender : Male

Character Name : Businessman (uncredited)

Original Name : Frederick Worlock

Gender : Male

Character Name : Doctor (uncredited)

Original Name : Eustace Wyatt

Gender : Male