Diabolique

Véra Clouzot

Christina Delassalle

Simone Signoret

Nicole Horner

Paul Meurisse

Michel Delassalle

Charles Vanel

Police Inspector Alfred Fichet

Jean Brochard

Plantiveau

Pierre Larquey

Mr. Drain

Michel Serrault

Mr. Raymond

Yves-Marie Maurin

Moinet

Georges Poujouly

Soudieu

Thérèse Dorny

Mrs. Herboux

Noël Roquevert

Mr. Herboux

Jean Lefebvre

Robert

Robert Dalban

Garage Owner

Georges Chamarat

Dr. Loisy

Madeleine Suffel

Counter Clerk

Jean Témerson

Hotel Janitor

Jacques Hilling

Morgue Receptionist

Camille Guérini

Photographer

Jacques Varennes

Dr. Bridoux

Henri Humbert

Patard (uncredited)

Michel Dumur

Ritberger (uncredited)

Jean-Pierre Bonnefous

Gascuel (uncredited)

Johnny Hallyday

Student (uncredited)

Jimmy Urbain

Student (uncredited)

Henri Coutet

Employee of the Morgue (uncredited)

Christian Brocard

Man in the Morgue (uncredited)

Jean Clarieux

Taxi Driver (uncredited)

Zappy Max

Radio Game-show Host (voice) (uncredited)