Trailer
Cast
Isabel La Mal
Woman at Accident (uncredited)
Francis Pierlot
Monsieur Michaud (uncredited)
Robert Walker
David Le Gros
Guy D'Ennery
Professor (uncredited)
George Meader
Singing Professor (uncredited)
Albert Bassermann
Professor Jean Perot
Reginald Owen
Dr. Becquerel
Edward Fielding
Board Member (uncredited)
Lisa Golm
Lucille (uncredited)
Lumsden Hare
Professor Roget (uncredited)
Alan Napier
Dr. Bladh (uncredited)
C. Aubrey Smith
Lord Kelvin
May Whitty
Madame Eugene Curie
Howard Freeman
Prof. Constant (voice) (uncredited)
María Pagés
Woman at Accident (uncredited)
Charles Trowbridge
Board Member (uncredited)
Gigi Perreau
Eve at 18 Months (uncredited)
Ruth Cherrington
Swedish Queen (uncredited)
Ray Teal
Driver (uncredited)
Teddy Infuhr
Son (uncredited)
James Kirkwood
Board Member (uncredited)
Walter Pidgeon
Pierre Curie
Gene Lockhart
Bit Part (uncredited)
Miles Mander
Businessman (uncredited)
Frederick Worlock
Businessman (uncredited)
Al Ferguson
Man at Accident (uncredited)
Moroni Olsen
President of Businessman's Board (uncredited)
Van Johnson
Reporter
Margaret O'Brien
Irene Curie - Age 5
George Davis
Cart Driver (uncredited)
James Hilton
Narration Spoken By (voice)
William Edmunds
Cart Driver (uncredited)
Victor Francen
President of University
Ray Collins
Lecturer (voice) (uncredited)
Ilka Grüning
Seamstress (uncredited)
Almira Sessions
Madame Michaud (uncredited)
Henry Travers
Eugene Curie
Arthur Shields
Businessman (uncredited)
Eustace Wyatt
Doctor (uncredited)
Wyndham Standing
King Oscar (uncredited)
Michael Visaroff
Proud Papa (uncredited)
Greer Garson
Marie Curie
Elsa Bassermann
Madame Perot
Marek Windheim
Jewelry Salesman (uncredited)