Mary Nell Steenburgen (born February 8, 1953) is an American actress, comedian, singer, and songwriter. After studying at New York's Neighborhood Playhouse in the 1970s, she made her professional acting debut in the Western comedy film Goin' South (1978). Steenburgen went on to earn critical acclaim for her role in Time After Time (1979) and Jonathan Demme's comedy-drama film Melvin and Howard (1980), for which she won the Academy Award for Best Supporting Actress.