Kristy McNichol

Christina Ann Kristy McNichol is an American actress and singer.

McNichol was born in Los Angeles, California, and appeared with her brother, Jimmy, in commercials and later, on her own, in guest appearances on such other series as Starsky amp Hutch, The Bionic Woman, Love American Style, and The Love Boat, thanks to family friend Desi Arnaz. Her first stint as a series regular came in the role of Patricia Apple in the shortlived CBS television series Apples Way .

Source: Wikipedia