But why is Auntie Joan departing? Actress Stephanie Cole says it's because she doesn't want to stay in one place for too long: "With TV, after four series I always say, 'Thank you, that's the end of it!' That's why I left Doc Martin - there are other mountains to climb, other rivers to swim," Cole shared with the TV Times magazine. "I absolutely respect people who spend a long time doing one thing, but I'm not made like that."
The 69-year-old Cole will move on to