Julia McKenzie (born 17 February 1941) is an English actress, singer and theatre director. On television, she is known for her BAFTA Award nominated role as Hester Fields in the sitcom Fresh Fields (1984–86), its sequel French Fields (1989–91), and as Miss Marple in Agatha Christie's Marple (2008–13).
McKenzie has also starred in numerous musicals, receiving a 1977 Tony Award nomination for her work in the Broadway revue, Side by Side by Sondheim. For her work in the West End, she has twice won the Olivier Award for Best Actress in a Musical; for the 1982 revival of Guys and Dolls and the 1993 revival of Stephen Sondheim's Sweeney Todd: The Demon Barber of Fleet Street. She also starred in the original London productions of the Sondheim musicals Follies (1987) and Into the Woods (1990).
She was born Julia Kathleen McKenzie on 17 February 1941, in Enfield, Middlesex, England, the daughter of Kathleen Rowe and Albion McKenzie.
McKenzie's early West End musical credits include Maggie May (1966), Mame (1969), and Company (1971). She appeared in the West End revue Side by Side by Sondheim in 1976, and made her Broadway debut when the show transferred to New York in 1977 receiving a Tony Award nomination for Best Featured Actress in a Musical. She also received a Drama Desk Award nomination. For her role as Miss Adelaide in the 1982 West End revival of Guys and Dolls, she won the first of two Olivier Awards for Best Actress in a Musical.