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 (TV series) one of the directors said, "Why don't we give [the Herriot part] to Christopher Timothy and "make" him a name?" In 2003, Timothy said that Alf Wight wrote him a letter after the series started, saying "You are the Herriot I wrote about". Siegfried Farnon, based on Wight's real life partner Donald Sinclair, is played by Robert Hardy. Writer Michael Russell sums up the character's composition thus: "He is capricious, cantankerous, whimsical, arbitrary, unreasonable, unpredictable, ill-tempered, extravagant, effusive, contradictory, etc., yet in the midst of all that, the most loyal and caring of friends." The cast met for the first