Apart from Corbett and Barker, several actors from television appeared multiple times in the series, most notably John Owens and Claire Nielson, who appeared in twenty-one and seventeen episodes respectively throughout the series. Other frequent performers include April Walker, John Rutland, Michael Redfern, Jenny Logan, Alec Bregonzi, Carol Hawkins, Dilys Watling, Joyce Windsor, Julia McKenzie, Barbara New, Ian Gray, Johnnie Wade, Patricia Brake (who starred with Barker in the sitcom "Porridge", which aired at the same time as the series), Josephine Tewson, Noel Dyson and Vicki Michelle. The Fred Tomlinson Singers appeared as background singers in twenty-five episodes.