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) and I wanted to do them," he explained in 2016. "I'd miss the second half of series 5 because of "A Very Peculiar Practice" and series 6 I missed because I was doing "Campion". I was incredibly lucky to move onto the things I did. There was no plan to it; it's just good fortune, being in the right place at the right time. But in the end, when I'd finished "Campion" and "A Very Peculiar Practice", "All Creatures" was still going and I never had any problem coming back." Helen Herriot (née Alderson) is played by Carol Drinkwater in