Professor Louis Delage

Florence Delage

Catherine Delage

Doctor Charles Tannard

Yvette

Jacques Brulages

Gaston Berval

Doctor Larmy

Jacqueline

Mrs. Berval

Georges

Marcillac

François

Barby

Marie-Laure

Professor Peccavi

Chang, butler

Gaston's friend

Doctor

Student

Paulette

Nurse

Patient

Émile

Young Albert

Lady of Orléans

Mrs. Martin

Jacky

Assistant to Doctor Delage (uncredited)

Patient (uncredited)

Gendarme (uncredited)

(uncredited)

(uncredited)

(uncredited)

(uncredited)

(uncredited)

(uncredited)

(uncredited)

(uncredited)

(uncredited)