Cast 25

1. 

   Bernard Lee

   Henry Houghton

2. 

   William Sylvester

   Gordon Lonsdale

3. 

   Margaret Tyzack

   Elizabeth Gee

4. 

   David Kossoff

   Peter Kroger

5. 

   Nancy Nevinson

   Helen Kroger

6. 

   Thorley Walters

   Cmdr. Winters

7. Gillian Lewis

   Marjorie Shaw

8. Newton Blick

   P.O. Meadows

9. 

   Philip Latham

   Captain Ray

10. 

    Cyril Chamberlain

    Anderson

11. Justine Lord

    Christina

12. 

    Patrick Barr

    Captain Warner

13. 

    Derek Francis

    Chief Supt. Croft

14. Hector Ross

    Supt. Woods

15. 

    Paul Eddington

    Johnnie

16. 

    Richard Marner

    Colonel Monat

17. 

    Geoffrey Palmer

    Police Officer

18. 

    Bryan Pringle

    Surveillance Man (uncredited)

19. Andre Mikhelson

    Russian Embassy official

20. 

    Garry Marsh

    First Member at Lords

21. 

    Basil Dignam

    Second Member at Lords

22. 

    Brian Nissen

    Portland official

23. Edwin Apps

    Blake

24. Fred Griffiths

    News vendor

25. Anita West

    Tilly

Crew 13