Ahead of its return later this year, All Creatures Great and Small guest star Maimie McCoy has revealed Siegfried and Dorothy's romance is set to continue in season 7. "I think she's quite a talent," she said, describing her return to All Creatures as both "a gorgeous experience" and "always a surprise". It's been really really lovely." Accept and continueAll Creatures Great and Small will return on 5 later this year. Add All Creatures Great and Small to your watchlist on the Radio Times: What to Watch app – download now for daily TV recommendations, features and more.