Irene Mary Wetton (or Mary Millar; July 26, 1936 – November 10, 1998) was a British actress. She acted in television and stage plays. She made her first television appearances in 1953 at age 17, in "Those were the Days". She played Cloris in "Lock Up Your Daughters" in 1962, and played the title role in "Ann Veronica" in 1969. Her best known role is that of Hyacinth Bucket's histrionic sister Rose in "Keeping Up Appearances".