Brian Sinclair (veterinary surgeon) Ministry of Agriculture's Sterility Advisory unit, rising to become head of the Veterinary Investigation Centre in Leeds. He was the model for the character 'Tristan Farnon' in Wight's semi-autobiographical novels, which were later adapted to the big screen in two films, and television under the name "All Creatures Great and Small". The fictional Tristan was portrayed as a charming rogue who was still studying veterinary medicine in the early books, constantly having to re-take examinations because of his lack of application, often to be found in the pub, and subject to tirades from his bombastic elder brother Siegfried. Unlike his
All Creatures Great and Small (TV series) is played by a different actress in each of the series' runs: Carol Drinkwater originally, then Lynda Bellingham for the revival. The supporting cast, both recurring and one-offs, numbers over 600, most of whom appear as farmers or clients of the surgery. The leading role is played by Christopher Timothy. Simon Ward (who had played the part in the 1975 film), John Alderton (who had replaced Ward in the sequel, "It Shouldn't Happen to a Vet") and Richard Beckinsale all turned down the role. Bill Sellars had wanted to give the role to Timothy from the outset, but the powers