Kristy McNichol is an American actress and singer. She was born on September 11, 1962, in Los Angeles, California. Kristy Mcnichol Net Worth is $7 million. McNichol began her career as a child actress in the 1970s, appearing in numerous television series and films. Some of her most notable roles include playing Letitia "Buddy" Lawrence in the TV series "Family" (1976-1980), and as Barbara Weston in the TV series "Empty Nest" (1988-1995).