Pasteur
Obsada
André Marnay
Doctor
Pierre Labry
Doctor
Julien Bertheau
Student (uncredited)
José Squinquel
Émile Roux
Armand Lurville
The first witness
Gaston Dubosc
President of the Academy of Medicine
Louis Maurel
Jules Guérin
Louis Gauthier
Poggiale
Sacha Guitry
Louis Pasteur
Maurice Schutz
Grandfather
Jean Périer
Doctor
François Rodon
Little Joseph Meister
Pierre Huchet
Servant (uncredited)
Camille Beuve
Joseph Lister (uncredited)
Charles Vissières
Frémy, old doctor (uncredited)
Henry Bonvallet
Sadi Carnot, President of the Republic