Marion Ross is an American actress best known for her role as Marion Cunningham on the popular television series Happy Days, which aired from 1974 to 1984. Born on October 25, 1927, in Watertown, Minnesota, she began her acting career in theater before transitioning to television and film. Throughout her career, Ross has appeared in various TV shows and movies, earning acclaim for her performances. In addition to Happy Days, she has guest-starred in numerous series and has been involved in voice acting, including roles in animated shows like The Simpsons.