The Liver Birds "Man is the dog, and woman is the bone. He eats the best of you, and buries the rest of you, and when his dish is empty—he'll dig you up again." This would be the last series with Beryl; as Polly James explained: "The reason I left the programme in the end was that I felt I was in danger of caricaturing what was already a pretty outrageous character." Producer Sydney Lotterby had to find a new leading actress to keep the series going after Polly James' departure. In 1971 he'd replaced Pauline Collins with Nerys Hughes, and Hughes herself
Polly (Doctor Who) of Dodo's decision to stay in 1966 to the Doctor, and accidentally get carried away in the TARDIS when they try to return Dodo's key to the time machine. Polly, in contrast to Dodo, is a more sophisticated and hip young woman of the 1960s — vivacious, attractive, and alternately shy and aggressive. She and Ben make an odd couple, but she is receptive to Ben's protective urges, and he in turn finds her elegant and posh, giving her the nickname "Duchess". Polly is present with Ben when the Doctor regenerates for the first time into a new form (Patrick