Patrick Macnee Actor Diana Rigg Actor Sally Nesbitt Guest Star William Lucas Guest Star Jack MacGowran Guest Star Roy Kinnear Guest Star Michael Coles Guest Star John Sharp Guest Star Andrew Keir Guest Star Cardew Robinson Guest Star Nicholas Smith Guest Star Anthony Dutton Guest Star Donald Sutherland Guest Star Roger Booth Guest Star Peter J. Elliott Guest Star Gerry Crampton Guest Star Ruth Trouncer Guest Star Rocky Taylor Guest Star John G. Heller Guest Star Dinny Powell Guest Star Robert Day Director Sidney Hayers Director John Krish Director Robert Asher Director Gordon Flemyng Director James Hill Director Roy Rossotti Director John Llewellyn Moxey Director Charles Crichton Director Albert Fennell Producer Peter Duffell Director Brian Clemens Producer, Writer Julian Wintle Executive Producer Philip Levene Writer Roger Marshall Writer Michael Winder Writer Bryan Sherriff Writer Tony Williamson Writer Richard Harris Writer