导演 Jean Devaivre

Stanilas Octave Seminario aka 'SOS', détective 保罗·梅尔瑞斯

Muriel Pescara, the daughter Micheline Francey

Charles Pescara, the son Gilbert Gil

Doctor Gérard Pescara, the father Pierre Renoir

Guillaume Jean Tissier

Paul Wantz Pierre-Louis

Hélène Tassin, nurse Junie Astor

Doctor Vermeulen Jean Debucourt

Investigating judge 让·布罗沙尔

Brigitte Tassin Mady Berry

Doorman Pierre Palau

Lock keeper Arthur Devère

Road mender Marcel Pérès

Gardener Sinoël

Baptiste, clerk Georges Bever

Hotel boss 玛德莱娜·叙费尔

Illusionist Pablo Michel Seldow

(uncredited) Marc Arian

(uncredited) Léon Arvel

Man (uncredited) Alfred Baillou

(uncredited) Rivers Cadet

(uncredited) Marcel Charvey

(uncredited) Raymond Destac

(uncredited) Pierre Duncan

(uncredited) Cécile Eddy

Concierge (uncredited) Henry Gerrar

Concierge (uncredited) Claire Gérard

(uncredited) Colette Mareuil

(uncredited) Pierre Moncorbier

Pescara cook (uncredited) Geneviève Morel

(uncredited) Henri Niel

Gossip (uncredited) Julienne Paroli

Director (uncredited) Marcelle Rexiane

(uncredited) Maurice Salabert

Gossip (uncredited) Germaine Stainval

Agent on duty (uncredited) Jean-Marc Tennberg

Telephone operator (uncredited) Georgette Tissier