Joan Sanderson was a British actress. During a long career on stage and screen, her tall and commanding disposition led to her playing mostly dowagers, spinsters and matrons, as well as intense Shakespearean roles. Her television work included the sitcoms Please Sir! (1968–72), Fawlty Towers and Ripping Yarns (1979) and Me and My Girl (1984–88).

Please Sir! is a British television sitcom created by John Esmonde and Bob Larbey and featuring actors John Alderton, Deryck Guyler, Penny Spencer, Joan Sanderson, Noel Howlett, Erik Chitty and Richard Davies. Produced by London Weekend Television for ITV, the series ran for 55 episodes between 1968 and 1972.