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) getting his costumes from Carters Country Wear in Helmsley," recalled costume designer Janice Rider in 2016. "I purchased his green tweed jacket and several waistcoats in a selection of bottle-green, fawn and mustard colours. He always wore Tattersall checked shirts and, apart from the shape of the collar, they haven't changed a great deal over the years." A bachelor at the time, Siegfried took over Skeldale House from another vet, named Grant. In the 1983 Christmas Special, Siegfried meets an old flame, Caroline Fisher, who has returned after living in America. They later marry and have children, as mentioned in