Ann Blyth is an American actress who has been active in the entertainment industry since the 1940s. She is best known for her roles in films such as Mildred Pierce (1945), The Great Caruso (1951), and The Miracle Worker (1962). She also appeared in television series such as The Twilight Zone, Bonanza, and The Love Boat. Blyth has received numerous awards and nominations throughout her career, including an Academy Award nomination for Best Supporting Actress for her performance in Mildred Pierce.