Andrea King appeared in Broadway plays and other theater work. Her Broadway credits included "Fly Away Home" (1935) and "Growing Pains" (1933). She also appeared as Mary Skinner in "Life with Father". Her film debut was in a docudrama, The March of Time's first feature-length film titled "The Ramparts We Watch" (1940). In 1944, she signed with Warner Bros. and changed her stage name to King (some of her early movies have her credited as "Georgette McKee", her stepfather's name). King appeared uncredited in the Bette Davis film "Mr. Skeffington" (1944), followed by another ten movies in the next three years. The Warner Bros. studio photographers voted King the most photogenic actress for the year 1945.