Julia Kathleen Nancy McKenzie CBE (born 17 February 1941) is an English actress, singer, presenter, and theatre director. ​She was awarded the Laurence Olivier Theatre Award in 1983 (1982 season) for Best Actress in a Musical, Guys and Dolls. She was awarded the Laurence Olivier Theatre Award in 1994 (1993 season) for Best Actress in a Musical for her performance in Sweeney Todd at the Royal National Theatre.