Louise Carletti

Arlette

Frank Villard

Inspector Wens

Roger Karl

Professor Artus

Jean Tissier

Tiburce Artus

Jean Témerson

Hector, butler

André Fouché

Maxime Artus

Jim Gérald

Ramshow

Eugène Yvernès

Chauffeur

Jean Berton

Commissioner

Maurice Lagrenée

Michel Marsay

Denyse Réal

Nurse

Huguette Montréal

Andrée

Paul Delauzac

Doctor

Jean Gabert

(uncredited)

Robert-Paul Dagan

Maurice Cammage