Cast 58

1. 

   Greer Garson

   Marie Curie

2. 

   Walter Pidgeon

   Pierre Curie

3. 

   Henry Travers

   Eugene Curie

4. 

   Albert Bassermann

   Professor Jean Perot

5. 

   Robert Walker

   David Le Gros

6. 

   C. Aubrey Smith

   Lord Kelvin

7. 

   May Whitty

   Madame Eugene Curie

8. 

   Victor Francen

   President of University

9. 

   Elsa Bassermann

   Madame Perot

10. 

    Reginald Owen

    Dr. Becquerel

11. 

    Van Johnson

    Reporter

12. 

    Margaret O'Brien

    Irene Curie - Age 5

13. 

    James Hilton

    Narration Spoken By (voice)

14. Mariska Aldrich

    Tall Woman (uncredited)

15. Tony Carson

    Man at Accident (uncredited)

16. 

    Ruth Cherrington

    Swedish Queen (uncredited)

17. 

    Ray Collins

    Lecturer (voice) (uncredited)

18. 

    Guy D'Ennery

    Professor (uncredited)

19. 

    George Davis

    Cart Driver (uncredited)

20. Harold De Becker

    Professor (uncredited)

21. Franz Dorfler

    Assistant Tailor (uncredited)

22. Justine Duney

    Woman at Accident (uncredited)

23. Tay Dunn

    Man at Accident (uncredited)

24. 

    William Edmunds

    Cart Driver (uncredited)

25. Nestor Eristoff

    Board Member (uncredited)

26. 

    Al Ferguson

    Man at Accident (uncredited)

27. 

    Edward Fielding

    Board Member (uncredited)

28. 

    Howard Freeman

    Prof. Constant (voice) (uncredited)

29. Linda Lee Gates

    Perot Granddaughter (uncredited)

30. Marie Louise Gates

    Perot Granddaughter (uncredited)

31. 

    Lisa Golm

    Lucille (uncredited)

32. 

    Ilka Grüning

    Seamstress (uncredited)

33. 

    Lumsden Hare

    Professor Roget (uncredited)

34. 

    Teddy Infuhr

    Son (uncredited)

35. 

    James Kirkwood

    Board Member (uncredited)

36. 

    Isabel La Mal

    Woman at Accident (uncredited)

37. 

    Gene Lockhart

    Bit Part (uncredited)

38. 

    Miles Mander

    Businessman (uncredited)

39. 

    George Meader

    Singing Professor (uncredited)

40. Dickie Meyers

    Master Michaud (uncredited)

41. Noel Mills

    Wedding Guest (uncredited)

42. Leo Mostovoy

    Photographer (uncredited)

43. 

    Alan Napier

    Dr. Bladh (uncredited)

44. 

    Moroni Olsen

    President of Businessman's Board (uncredited)

45. María Pagés

    Woman at Accident (uncredited)

46. 

    Gigi Perreau

    Eve at 18 Months (uncredited)

47. 

    Francis Pierlot

    Monsieur Michaud (uncredited)

48. Nita Pike

    Woman at Accident (uncredited)

49. Dorothy Raye

    Nurse (uncredited)

50. 

    Almira Sessions

    Madame Michaud (uncredited)

51. 

    Arthur Shields

    Businessman (uncredited)

52. 

    Wyndham Standing

    King Oscar (uncredited)

53. 

    Ray Teal

    Driver (uncredited)

54. 

    Charles Trowbridge

    Board Member (uncredited)

55. 

    Michael Visaroff

    Proud Papa (uncredited)

56. 

    Marek Windheim

    Jewelry Salesman (uncredited)

57. 

    Frederick Worlock

    Businessman (uncredited)

58. 

    Eustace Wyatt

    Doctor (uncredited)

Crew 11