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