A cabaret singer and photo model in her early years while studying acting and mime.
Along with Lalla Ward, she is one of two actresses to play a companion in "Doctor Who" (1963) who was once married to an actor who played the Doctor. She portrayed the short-lived companion Sara Kingdom from December 1965 to January 1966 in the William Hartnell serial "The Daleks' Master Plan". Prior to the series' creation, she was married to Jon Pertwee from 1955 to 1960, who later played the Third Doctor on the series.
Along with Harold Innocent, she is one of the only two actors to appear in both "Doctor Who" (1963) and "Twilight Zone" (1959).
Co-created (with actress Eileen Atkins), her most memorable series "Upstairs, Downstairs" (1971) which ran from 1971 to 1975. The two actresses later co-created "The House of Eliott" (1991) for BBC TV.
Measurements: 36 1/2-26-37 (Source: Celebrity Sleuth magazine)
She played two different versions of Morgan Le Fay, the half-sister of King Arthur, in 1989: Morgana in A Connecticut Yankee in King Arthur's Court (1989) (TV) and Morgaine in "Doctor Who: Battlefield: Part 1 (#26.1)" (1989).
Voted for best actress for Battlefield by Readers of Doctor Who Magazine.