In 1967, McKnight played Jack's mother in
Hanna-Barbera's
live action version of
Jack and the Beanstalk, an
Emmy Award-winning film directed by
Gene Kelly, in which he also appeared as Jeremy the Peddler. Her voice was dubbed by
Janet Waldo so she would sound as well as resemble the animated Princess Serena. She appeared in an episode of
The Love Boat in 1984, along with
Jean Bartel, Miss America 1943;
Nancy Fleming, Miss America 1961; and
Vanessa L. Williams, Miss America 1984. ==Personal life==