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