Margaret Ann "Peggy" Lipton (born August 30, 1946) is an American actress and former model. Lipton became an overnight success through her best-known role as flower child Julie Barnes in the ABC counterculture television series The Mod Squad (1968–1973) for which she won the Golden Globe Award for Best Actress – Television Series Drama in 1970. Her fifty-year career in television, film, and on stage included many roles, most notably that of Norma Jennings in David Lynch's surreal Twin Peaks. Lipton was married to the musician/producer Quincy Jones and is mother to their two daughters, Rashida Jones and Kidada Jones, who also became actresses.