Marcy Lynn Walker (born November 26, 1961), also known as Marcy Smith, is an American minister and former actress known for her television appearances on daytime soap operas. Her most famous roles are those of Liza Colby on All My Children, which she played from 1981 to 1984 and 1995 to 2005, and as Eden Capwell on Santa Barbara from 1984 to 1991.
Walker was born in Paducah, Kentucky and traveled the world during her youth. In 1979, she graduated from Triad High School in Troy, Illinois, where she was active in the drama club. She also attended Antelope Valley High School in Lancaster, California in 1975–1978.
Marcy has one son, Taylor, from her third husband, Stephan Collins. In 1999, she married Doug Smith and goes by the name Marcy Smith in her private life. At one point, she was romantically involved with former All My Children costar Michael E. Knight, who played Tad Martin on the show. She was briefly engaged to actor Bronson Pinchot during the mid-1980s. She was once married to actor Billy Warlock. In a 1998 interview with Soap Opera Digest, she explained the breakup.