- Joan Miller - Mrs Smith-Gould
- William Hartnell - Major Fowler
- Roy Kinnear - Fred Smith
- John Harvey - Wilson, Prison Officer (uncredited)
- Joan Hickson - Housewife
- Eric Barker - Bank Manager
- John Comer - Butcher
- Kenneth Griffith - Rev. Owen Thomas
- Mark Eden - Sir Geoffrey Despard
- Basil Dignam - Prison Governor
- Colin Gordon - Prime Minister
- Geoffrey Hibbert - Council Official
- Ludovic Kennedy - Himself
- Malcolm Muggeridge - Cleric
- Harry Locke - Shop Steward
- Derek Nimmo - DG Assistant
- Conrad Phillips - Deaf Man
- Miles Malleson - Bishop Rockeby
- Thorley Walters - Tranquilax Executive
- Marianne Stone - Miss Palmer
- Gerald Sim - Store Manager
- Anna Wing - Housewife
- Cardew Robinson - Tramp
- Louis Mansi - Man Buying Groceries (uncredited)
-
Roy Boulting, John Boulting
-
Frank Harvey
- Roy Boulting
Capítulo disponible en las siguientes plataformas:
