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