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) A decade later, in October 2016, all four main actors from the original run reunited to mark the centenary of Alf Wight's birth. For their parts, Timothy was 74, Hardy was 89, Davison was 65 and Drinkwater was 68. All Creatures Great and Small (TV series) All Creatures Great and Small is a British television series based on the books of the British veterinary surgeon Alf Wight, who wrote under the pseudonym James Herriot. In early 1977, the BBC tasked producer Bill Sellars with the creation of a television series from Herriot's first two novels, "If Only They Could Talk"