Cast 56

1. 

   Ralph Richardson

   Prof. Heatherville

2. 

   Raymond Huntley

   Prof. Laxton-Jones

3. 

   John Laurie

   Dr. McVitie

4. Ernest Jay

   Dr. Dainty

5. 

   David Tomlinson

   Mr. Watlington

6. 

   Finlay Currie

   Sir Duncan Wills

7. Norman Webb

   Dr. Wainwright

8. 

   Michael Hordern

   Lt. Cmdr. Lowther

9. 

   Pamela Matthews

   Mrs. Watlington

10. Joan Haythorne

    Mrs. Laxton-Jones

11. 

    Joan Young

    Mrs. McVitie

12. Ann Wilton

    Mrs. Dainty

13. 

    Richard Attenborough

    Jack Arnold

14. 

    David Hutcheson

    Squadron Leader Sowerby

15. 

    Patrick Waddington

    Group Capt. Aspinall

16. 

    Cyril Smith

    Flight Sgt. Cox

17. 

    James Hayter

    Warrant Officer

18. D. Bradley Smith

    Air Marshal Cotter

19. 

    Robin Bailey

    Wives' Escort Officer

20. Hugh Dempster

    Sqdn. Ldr. Slatter

21. Kenneth Buckley

    Sqdn. Ldr. Buckley

22. 

    Paul Carpenter

    Flt. Lt. Argylle

23. 

    Anthony Dawson

    Flt. Lt. Norton

24. Robert Long

    Flying Officer Davies

25. Richard Mantell

    Air Vice-Marshal

26. 

    Murray Matheson

    Wing Cdr. Allen

27. Anthony Wyckham

    Flying Officer Ogden

28. 

    Peggy Evans

    Daphne Adams

29. Ingrid Forrest

    Penelope Birkenshaw

30. Geraldine Keyes

    Phyllis Hammond

31. 

    Vida Hope

    WAAF Flight Sergeant

32. Sonia Elverson

    WAAF Teller

33. 

    Robert Wyndham

    Major

34. Andrew Blackett

    Captain

35. 

    Bill Owen

    Paratroop Sergeant

36. Tony Arpino

    1st Commando

37. Peter March

    2nd Commando

38. Bob Elson

    3rd Commando

39. Roger Keyes

    4th Commando

40. Trevening Hill

    5th Commando

41. Edward Hodge

    6th Commando

42. Joseph Almas

    Dr. Klemmerhahn

43. Arthur Rieck

    Lt. Hense

44. Ernest Urbank

    1st Sentry

45. Karl Morel

    2nd Sentry

46. 

    Marjorie Rhodes

    Mrs. Arnold

47. Edward Lexy

    Sir Desmond Prosser

48. 

    Hugh Pryse

    Sir Nicholas Hathaway

49. 

    O.B. Clarence

    Old Retainer

50. 

    Aubrey Mallalieu

    1st Club Member

51. 

    Desmond Roberts

    2nd Club Member

52. Guy Belmore

    3rd Club Member

53. Alvar Liddell

    BBC Announcer (voice)

54. 

    Kenneth More

    Bomb Aimer (uncredited)

55. 

    Arthur Mullard

    (uncredited)

56. Ian Selby

    Man at Dance (uncredited)

Crew 20