All Creatures Great and Small (TV series) that be wanted to cast the role. Sellars, instead, asked Timothy if he would accept the role of Tristan Farnon. "I had a wife, I had children, I had a mortgage to pay, and I wasn't working. So I said, 'No. It's Herriot or nothing.'" Timothy put everything on the line. "I got home one night, at about 9 o'clock. My wife was washing up in the kitchen. I walked into the kitchen and she said, without turning round, 'You've got the Herriot part.'" Timothy also stated that, after all of the roles had been cast except that of Herriot,
All Creatures Great and Small (franchise) All Creatures Great and Small (franchise) The All Creatures Great and Small franchise consists of a series of books written by James Wight under the pen name "James Herriot" based on his experiences as a veterinary surgeon. The books have been adapted for film and television, including a 1975 film titled "All Creatures Great and Small", followed by the 1976 "It Shouldn't Happen to a Vet" sequel, as well as on television a long-running BBC television programme of the same title, and a prequel series in 2011, "Young James Herriot". The book series focuses on the adventures of veterinary surgeon