Mae Questel

Mae Questel (; born Mae Kwestel; September 13, 1908 – January 4, 1998) was an American actress. She was best known for providing the voices for the animated characters Betty Boop (from 1931) and Olive Oyl (from 1933).

Questel began her career in vaudeville, primarily working as an impressionist. She later performed on Broadway and in films and television, including her role as Aunt Bethany in ''National Lampoon's Christmas Vacation'' (1989). Provided by Wikipedia