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) Carol Drinkwater later said of this appearance: "[Dale] did an interview with each of us on our own, and he asked if I had known what a sex symbol I was? I was completely stunned, I had no idea. I mean, I used to get boxes of marriage proposals... I used to bin them, I never read them. I was very naughty. Now I answer all my mail, though there is much less of it now, of course." "Carol will always remain my favourite actress," make-up artist Maggie Thomas recalled. "She was a breath of fresh air; never moody or