Lucy Ann Ewing is a fictional character in the popular American television series Dallas. The character is played by Charlene Tilton and first appeared in the series premiere on April 2, 1978. Tilton left the show at the end of season 8 in 1985, before returning for the last two episodes of season 11 in 1988, becoming a series regular again in season 12. Lucy was then written out again in 1990. Lucy appeared in one episode of the Dallas spin-off Knots Landing - Season One, Episode 6: "Home is for Healing" (1980). She returned as a guest star in the continuation of Dallas in 2012.