
Guitry reprises his role as Pasteur which he played successfully at the Vaudeville Theatre in 1919.

Louis Pasteur

Grandfather

Émile Roux

Doctor

Doctor

Doctor

The first witness
The second witness

Sadi Carnot, President of the Republic

President of the Academy of Medicine

Little Joseph Meister

Jules Guérin

Poggiale
Student

Servant (uncredited)

Joseph Lister (uncredited)

Student (uncredited)
Student (uncredited)
Student (uncredited)
Student (uncredited)
Little boy (uncredited)

Frémy, old doctor (uncredited)