 |
Paul Meurisse as Stanilas Octave Seminario aka 'SOS', détective |
 |
Micheline Francey as Muriel Pescara, the daughter |
 |
Gilbert Gil as Charles Pescara, the son |
 |
Pierre Renoir as Doctor Gérard Pescara, the father |
 |
Jean Tissier as Guillaume |
 |
Pierre-Louis as Paul Wantz |
 |
Junie Astor as Hélène Tassin, nurse |
 |
Jean Debucourt as Doctor Vermeulen |
 |
Jean Brochard as Investigating judge |
 |
Mady Berry as Brigitte Tassin |
 |
Pierre Palau as Doorman |
 |
Arthur Devère as Lock keeper |
 |
Marcel Pérès as Road mender |
 |
Sinoël as Gardener |
 |
Georges Bever as Baptiste, clerk |
 |
Madeleine Suffel as Hotel boss |
 |
Michel Seldow as Illusionist Pablo |
 |
Marc Arian as (uncredited) |
 |
Léon Arvel as (uncredited) |
 |
Alfred Baillou as Man (uncredited) |
 |
Rivers Cadet as (uncredited) |
 |
Marcel Charvey as (uncredited) |
|
Raymond Destac as (uncredited) |
 |
Pierre Duncan as (uncredited) |
|
Cécile Eddy as (uncredited) |
|
Henry Gerrar as Concierge (uncredited) |
 |
Claire Gérard as Concierge (uncredited) |
|
Colette Mareuil as (uncredited) |
 |
Pierre Moncorbier as (uncredited) |
 |
Geneviève Morel as Pescara cook (uncredited) |
 |
Henri Niel as (uncredited) |
 |
Julienne Paroli as Gossip (uncredited) |
 |
Marcelle Rexiane as Director (uncredited) |
 |
Maurice Salabert as (uncredited) |
 |
Germaine Stainval as Gossip (uncredited) |
 |
Jean-Marc Tennberg as Agent on duty (uncredited) |
|
Georgette Tissier as Telephone operator (uncredited) |
| Directing | Jean Devaivre | Director |
| Writing | Jean-Paul Le Chanois | Screenplay |
| Camera | René Gaveau | Director of Photography |
| Sound | Joseph Kosma | Original Music Composer |
