A true story about Louis Pasteur, who revolutionized medicine by proving that much disease is caused by microbes, that sanitation is paramount and that at least some diseases can be cured by vaccinations.
Paul Muni
as Louis Pasteur
Josephine Hutchinson
as Marie Pasteur
Anita Louise
as Annette Pasteur
Donald Woods
as Dr. Jean Martel
Fritz Leiber
as Dr. Charbonnet
Henry O'Neill
as Dr. Emile Roux
Porter Hall
as Dr. Rossignol
Raymond Brown
as Dr. Radisse
Akim Tamiroff
as Dr. Zaranoff
Halliwell Hobbes
as Dr. Lister
Frank Reicher
as Dr. Pfeiffer
Dickie Moore
as Joseph Meister