Cast 67

1. 

   Jack Hawkins

   Supt Tom Halliday

2. 

   John Stratton

   Sergeant Ward

3. 

   Dorothy Alison

   Mary Halliday

4. Michael Brooke

   Tony Halliday

5. 

   Sam Kydd

   Police Constable in Information Room

6. 

   Glyn Houston

   Detective Sergeant in 'Q' car

7. 

   Richard Leech

   Nightwatchman / Gilson

8. Newton Blick

   Deputy Commander

9. 

   Geoffrey Keen

   Chief Superintendent Jim Malcolm

10. 

    Sydney Tafler

    Stone

11. 

    Peter Burton

    Creasey

12. 

    George Rose

    Slob

13. 

    Arthur Rigby

    Detective Inspector at Chester

14. 

    Ralph Truman

    Colonel Blenkinsop

15. 

    Ian Bannen

    The Young Workman - Stanley James

16. Maureen Davis

    The Young Workman's Wife - Mrs. James

17. 

    John Warwick

    Detective Inspector at Shipping Office

18. 

    Joss Ambler

    Cashier at Shipping Office

19. Barry Keegan

    Detective Constable in Hospital Ward

20. 

    Alec McCowen

    House Surgeon

21. Harry Locke

    Secondhand Dealer

22. 

    Nicholas Parsons

    Police Constable Bates

23. Warwick Ashton

    Newspaper Circulation Manager

24. 

    Ursula Howells

    Mrs. Elliot / Mrs. Gilson

25. David Davies

    Welsh Police Constable

26. Julie Milton

    Welsh Newsagent's Daughter

27. 

    Meredith Edwards

    Mr. Thomas

28. 

    Harold Goodwin

    Official at Somerset House

29. 

    John Welsh

    House Agent at Shepperton

30. Gillian Webb

    Housewife at Shepperton

31. 

    Maureen Delaney

    Mrs. Stevens, the daily help

32. 

    Jameson Clark

    Detective Superintendent Ogilvie

33. 

    William Mervyn

    Manager of Festival Hall

34. 

    Vincent Ball

    P.C. at Hospital (uncredited)

35. 

    Richard Davies

    Detective (uncredited)

36. 

    Frazer Hines

    Urchin (uncredited)

37. 

    Stratford Johns

    Constable (uncredited)

38. 

    David Lodge

    Detective at Car Lot (uncredited)

39. 

    Guy Standeven

    Detective (uncredited)

40. Frederick Treves

    Detective tailing Creasey (uncredited)

41. Peter Welch

    CID Man (uncredited)

42. 

    Martin Wyldeck

    Officer in Criminal Records Department (uncredited)

43. Dennis Carnell

44. Edward Cast

45. Michael Collins

46. Fred Davis

47. Jack Dearlove

48. Robert Gregory

49. Fred Griffiths

50. Patrick Halpin

51. Aidan Harrington

52. George Holdcroft

53. Lindsay Hooper

54. Arthur Howell

55. Colin McKenzie

56. 

    Jack McNaughton

57. Robert Moor

58. Fred Nicholas

59. John Paul

60. Roy Purcell

61. Charles Rayford

62. Anthony Richmond

63. Pat Ryan

64. Philip Stewart

65. Meadows White

66. John Wilder

67. Sonnie Wills

Crew 13