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) the movies and television series) was taken from the hymn "All Things Bright and Beautiful". According to Herriot's son, it was his sister who suggested the title, initially proposing "Ill Creatures Great and Small". "All Creatures Great and Small" is based on first two novels, "If Only They Could Talk" (1970) and "It Shouldn't Happen to a Vet" (1972), and was given the same title as the 1972 US compilation volume of these two novels, was released in 1975. It was directed by Claude Whatham, and written by Hugh Whitemore, and starred Simon Ward as James Herriot and Anthony Hopkins