From Wikipedia, the free encyclopedia Marilyn Jeanne McGuire (February 22, 1926 – August 7, 2021), known professionally as Marcy McGuire, was an American actress and contralto singer who was active in the 1940s. She was born to James Joseph McGuire, a film projectionist, and Annona (née Crowley) McGuire. Her parents divorced in the early 1930s while McGuire was still a child. McGuire signed a contract with RKO Pictures and was subsequently cast in her first film at the age of sixteen, Seven Days' Leave (1942), wh