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,
Shannon Farnon commercials and cartoons, however her first role was in 1965 in an uncredited role on "Burke's Law". She went on to appear in multiple other television series, but was most active in the voice-over field in commercials. While playing a mother in a live-action commercial in 1973 for Flintstone vitamins she was approached by voice director Wally Burr to audition for what was to be her most long-running famous role, Wonder Woman on "Super Friends". From 1973 to 1983, Farnon voiced the Amazonian superheroine on "Super Friends", "Challenge of the Super Friends", "The All-New Super Friends Hour", "The World's Greatest