Lean, aristocratic-looking British character actress,on stage from the 1940's. She was noted on Broadway for her performance (and for bringing the house down with her tango on opening night) as Lady India in Jean Anouilh's 'Ring Around the Moon' (1950-51). On television, her aquiline features and impeccable bearing led to her gravitating towards upper class roles as wealthy or snooty socialites -- few more memorable than her unnamed party-goer in the dream sequence of The Prisoner (1967) episode "A.B.and C."; and as Mrs. Butterworth, who not o…