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) in case it would be confused with earlier companion Barbara Wright. In "The Faceless Ones", a double of Polly is named Michelle Leuppi; an apparent mishearing of this and misinterpretation of the context led to some reference works giving Polly the last name of "Lopez". Anneke Wills suggested the name "Bettingham-Smith", after one of her friends. In the Virgin Missing Adventures novel "Invasion of the Cat-People" by Gary Russell, Wright is expressly given as Polly's last name, as it was supposedly given in Gerry Davis's character breakdown and audition script sample when, as story editor, he and producer Innes Lloyd