Top Billed Cast

1. 

   Tom Conway

   Tom Conway, Private Investigator

2. 

   Mila Parély

   Helen Pascall

3. 

   Naomi Chance

   Gina, a model

4. 

   Eric Pohlmann

   Mr. Mercedes

5. 

   Andrew Osborn

   Capt. Colin Simpson

6. 

   Richard Wattis

   Detective Inspector MacLeod

7. 

   Margaret Halstan

   Lady Marchant

8. 

   Eileen Way

   Mme. Fernande

9. 

   Michael Ripper

   Eddie

10. 

    Betty Cooper

    Miss Betty, Showroom Mistress

11. 

    Thomas Heathcote

    Detective Sgt. Jessup

12. 

    Alan Rolfe

    Inspector

13. 

    Roger Delgado

    Marlowe

14. 

    Reed De Rouen

    Heath

15. 

    Delphi Lawrence

    Chelsea

16. 

    Christine Forrest

    Blonde

17. 

    Ann Hanslip

    Jane, model with shoulder-length hair

18. 

    Davy Leon

    George

19. 

    Dorothy Robson

    A Seamstress

20. 

    Leo Phillips

    Harry, the Night Watchman

21. 

    Robert Moore

    Stevenson

22. 

    Denis Cowles

    Commissionaire

23. 

    John H. Watson

    Chauffeur

24. 

    Cleo Rose

    Vivian

25. 

    Cab Kaye

    Self - Singer-Pianist (uncredited)

26. 

    John Lynn

    Nightclub Patron (uncredited)

27. 

    Jack Mandeville

    Fashion Show Attendee (uncredited)

28. 

    Ernie Priest

    Policeman (uncredited)