Peggy Lipton (b. August 30th, 1946) is an American actress and model. She was an overnight success as flower child Julie Barnes in the iconic counterculture TV show The Mod Squad (1968-1973). A former model and singer, her career in film, stage and television has spanned more than forty years . Best known for her role in The Mod Squad, she is also noted for appearing as Norma Jennings in David Lynch's surreal Twin Peaks, and for her one-time marriage to Quincy Jones. She is mother to their two actress daughters Rashida and Kidada Jones..