Born in London, she began her career in the 1950s, appearing in various British television series and films. Co-creator and star of the acclaimed TV series "Upstairs, Downstairs," she earned an Emmy Award for her role as Rose Buck. Her versatile talent extended to stage performances and writing. Throughout her career, she appeared in a variety of genres, including science fiction, with notable roles in "Doctor Who." Her contributions to television and film have left a lasting impact.