The Cast

50 Members
Greer Garson
Greer GarsonMarie Curie
Walter Pidgeon
Walter PidgeonPierre Curie
Henry Travers
Henry TraversEugene Curie
Albert Bassermann
Albert BassermannProfessor Jean Perot
Robert Walker
Robert WalkerDavid Le Gros
C. Aubrey Smith
C. Aubrey SmithLord Kelvin
May Whitty
May WhittyMadame Eugene Curie
Victor Francen
Victor FrancenPresident of University
Elsa Bassermann
Elsa BassermannMadame Perot
Reginald Owen
Reginald OwenDr. Becquerel
Van Johnson
Van JohnsonReporter
Margaret O'Brien
Margaret O'BrienIrene Curie - Age 5
James Hilton
James HiltonNarration Spoken By (voice)
Mariska Aldrich
Mariska AldrichTall Woman (uncredited)
Tony Carson
Tony CarsonMan at Accident (uncredited)
Ruth Cherrington
Ruth CherringtonSwedish Queen (uncredited)
Ray Collins
Ray CollinsLecturer (voice) (uncredited)
Guy D'Ennery
Guy D'EnneryProfessor (uncredited)
George Davis
George DavisCart Driver (uncredited)
Harold De Becker
Harold De BeckerProfessor (uncredited)
Franz Dorfler
Franz DorflerAssistant Tailor (uncredited)
Justine Duney
Justine DuneyWoman at Accident (uncredited)
Tay Dunn
Tay DunnMan at Accident (uncredited)
William Edmunds
William EdmundsCart Driver (uncredited)
Nestor Eristoff
Nestor EristoffBoard Member (uncredited)
Al Ferguson
Al FergusonMan at Accident (uncredited)
Edward Fielding
Edward FieldingBoard Member (uncredited)
Howard Freeman
Howard FreemanProf. Constant (voice) (uncredited)
Linda Lee Gates
Linda Lee GatesPerot Granddaughter (uncredited)
Marie Louise Gates
Marie Louise GatesPerot Granddaughter (uncredited)
Lisa Golm
Lisa GolmLucille (uncredited)
Ilka Grüning
Ilka GrüningSeamstress (uncredited)
Lumsden Hare
Lumsden HareProfessor Roget (uncredited)
Teddy Infuhr
Teddy InfuhrSon (uncredited)
James Kirkwood
James KirkwoodBoard Member (uncredited)
Isabel La Mal
Isabel La MalWoman at Accident (uncredited)
Gene Lockhart
Gene LockhartBit Part (uncredited)
Miles Mander
Miles ManderBusinessman (uncredited)
George Meader
George MeaderSinging Professor (uncredited)
Dickie Meyers
Dickie MeyersMaster Michaud (uncredited)
Noel Mills
Noel MillsWedding Guest (uncredited)
Leo Mostovoy
Leo MostovoyPhotographer (uncredited)
Alan Napier
Alan NapierDr. Bladh (uncredited)
Moroni Olsen
Moroni OlsenPresident of Businessman's Board (uncredited)
María Pagés
María PagésWoman at Accident (uncredited)
Gigi Perreau
Gigi PerreauEve at 18 Months (uncredited)
Francis Pierlot
Francis PierlotMonsieur Michaud (uncredited)
Nita Pike
Nita PikeWoman at Accident (uncredited)
Dorothy Raye
Dorothy RayeNurse (uncredited)
Almira Sessions
Almira SessionsMadame Michaud (uncredited)

Technical Crew

Top Credits
Mervyn LeRoy
Mervyn LeRoyDirector
Paul Osborn
Paul OsbornScreenplay
Hans Rameau
Hans RameauScreenplay
E.J. Mannix
E.J. MannixExecutive Producer
Joseph Ruttenberg
Joseph RuttenbergDirector of Photography
Christina Stead
Christina SteadScreenplay