Born in London, the daughter of Daisy Kennedy, an Australian concert violinist and Benno Moiseiwitsch, a Russian/Ukrainian-born classical pianist who became a British citizen in 1937, she attended the Central School of Arts and Crafts.
Some of her more notable productions included the Old Vic Company's Rostand's Cyrano de Bergerac, Britten's opera Peter Grimes at Covent Garden, Chekov's Uncle Vanya, and Sheridan's The Critic.
[3] She had to her credit no fewer than five Broadway productions: Uncle Vanya and The Critic in 1946, The Matchmaker in 1955–57, The House of Atreus in 1968, and The Misanthrope in 1975.
She designed CBC’s 1957 film of the Ontario Stratford Festival’s Oedipus Rex,[2] Granada Television's 1983 film production of King Lear starring Laurence Olivier,[4] and is also credited for the 2004 Broadway revival of King Lear, in which the scenery was based on her designs for Stratford.
[6] In 2003, she was posthumously appointed as an honorary Officer of the Order of Canada for her "enormous impact on theatre arts in the 20th century".