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