Derek Fowlds Bernard Woolley Actor Paul Eddington MP James Hacker Actor Nigel Hawthorne Sir Humphrey Appleby Actor Arthur Cox George Actor Frank Middlemass The Master of Ballie College Actor Brenda Blethyn Joan Littler Actor Graeme Garden Commander Forrest Actor John Nettleton Sir Arnold Robinson Actor Diana Hoddinott Annie Hacker Actor John Barron Sir Ian Whitworth Actor Freddie Earlle Sir Wally McFarlane Actor Peter Cellier Sir Frank Gordon Actor Jerome Willis Professor Henderson Actor Ivor Roberts Walter Fowler Actor John Pennington Peter Actor Nigel Stock Sir Mark Spencer Actor Rosemary Frankau Mrs Rogers Actor Stephen Tate Billy Fraser Actor Margo Johns Parks and Forestery Civil Servant Actor Jay Neill Bodyguard Actor Peter Whitmore Director Antony Jay Writer Jonathan Lynn Writer