Paul Eddington Prime Minister Hacker Actor Nigel Hawthorne Sir Humphrey Appleby Actor Derek Fowlds Bernard Woolley Actor John Barron Sir Ian Whitworth - DHSS Secretary Actor Clive Merrison Dr Peter Thorn - Minister of State at the DHSS Actor Peter Cellier Sir Frank Gordon - Permanent Secretary of the Treasury Actor Bill Wallis Leslie Potts - Minister for Sport Actor Brian Hawksley Gerald - Chairman, British Tobacco Group Actor Sydney Lotterby Director, Executive Producer Jonathan Lynn Writer Antony Jay Writer