Cast
Cecil Parker
Arthur Prohack
Glynis Johns
Mimi Warburton
Denholm Elliott
Oswald Morfrey
Bryan Forbes
Tony
Judith Furse
Laura Postern
Frederick Leister
The Director General
Jon Pertwee
Plover
Ada Reeve
Mrs. Griggs
Jerry Verno
Taxi Driver (uncredited)
Heather Thatcher
Lady Maslam
Russell Waters
Cartwright
Ian Carmichael
Hat Salesman (uncredited)
Henry Edwards
Sir Digby Bunce
Dirk Bogarde
Charles Prohack
Sheila Sim
Mary Prohack
Hermione Baddeley
Eve Prohack
James Hayter
Carrell Quire
Frederick Valk
Dr. Viega