Top Billed Cast

1. 

   Paul Meurisse

   Stanilas Octave Seminario aka 'SOS', détective

2. 

   Micheline Francey

   Muriel Pescara, the daughter

3. 

   Gilbert Gil

   Charles Pescara, the son

4. 

   Pierre Renoir

   Doctor Gérard Pescara, the father

5. 

   Jean Tissier

   Guillaume

6. 

   Pierre-Louis

   Paul Wantz

7. 

   Junie Astor

   Hélène Tassin, nurse

8. 

   Jean Debucourt

   Doctor Vermeulen

9. 

   Jean Brochard

   Investigating judge

10. 

    Mady Berry

    Brigitte Tassin

11. 

    Pierre Palau

    Doorman

12. 

    Arthur Devère

    Lock keeper

13. 

    Marcel Pérès

    Road mender

14. 

    Sinoël

    Gardener

15. 

    Georges Bever

    Baptiste, clerk

16. 

    Madeleine Suffel

    Hotel boss

17. 

    Michel Seldow

    Illusionist Pablo

18. 

    Marc Arian

    (uncredited)

19. 

    Léon Arvel

    (uncredited)

20. 

    Alfred Baillou

    Man (uncredited)

21. 

    Rivers Cadet

    (uncredited)

22. 

    Marcel Charvey

    (uncredited)

23. 

    Raymond Destac

    (uncredited)

24. 

    Pierre Duncan

    (uncredited)

25. 

    Cécile Eddy

    (uncredited)

26. 

    Henry Gerrar

    Concierge (uncredited)

27. 

    Claire Gérard

    Concierge (uncredited)

28. 

    Colette Mareuil

    (uncredited)

29. 

    Pierre Moncorbier

    (uncredited)

30. 

    Geneviève Morel

    Pescara cook (uncredited)

31. 

    Henri Niel

    (uncredited)

32. 

    Julienne Paroli

    Gossip (uncredited)

33. 

    Marcelle Rexiane

    Director (uncredited)

34. 

    Maurice Salabert

    (uncredited)

35. 

    Germaine Stainval

    Gossip (uncredited)

36. 

    Jean-Marc Tennberg

    Agent on duty (uncredited)

37. 

    Georgette Tissier

    Telephone operator (uncredited)