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