Laura Mackenzie Phillips (born November 10, 1959) is an American actress and singer, known for her roles as Carol Morrison in the film American Graffiti, as teenager Julie Mora Cooper Horvath on the sitcom One Day at a Time, and as Molly Phillips on the Disney Channel supernatural series So Weird. Early life Born in Alexandria, Virginia, she is the daughter of John Phillips, singer in The Mamas & the Papas, and his first wife, Susan Stuart Adams. She is the sister of Jeffrey Phillips and a half-sister of Tamerlane Phillips, actress Bijou Phillips, and singer Chynna Phillips. Phillips attended Highland Hall Waldorf School in Northridge, California. At age 12, Phillips formed a band with three of her classmates and was spotted by a casting agent during one of their performances. She was given an audition for a role in the 1973 film American Graffiti, which she won. Career Phillips was 12 years old during the filming of American Graffiti, and 13 when the movie was released. She was cast as Carol Morrison, a young girl accidentally picked up by hot rodding teenager John Milner (Paul Le Mat). Because of California state law, producer Gary Kurtz became Phillips's legal guardian for the duration of the filming. Phillips gained stardom in the 1970s playing teenager Julie Cooper (when the character got married, her married name was Horvath) on the long-running television show One Day at a Time, for which she earned $50,000 (equal to $ today) a week. During the show's third season in 1977, Phillips was arrested for disorderly conduct. Because of her drug and alcohol abuse, Phillips began arriving late and was even incoherent for rehearsals. The producers ordered her to take a six-week break to overcome her addiction but were ultimately forced to fire her in 1980. After two near-fatal overdoses, Phillips entered Fair Oaks Hospital voluntarily for treatment. In 1981, the producers of One Day at a Time invited her back to the show. However, in 1982, Phillips relapsed into cocaine use and the following year, she collapsed on the show's set. After refusing to take a drug test, she was fired permanently, and her character was written out of the series. In 1992, Philips entered a drug rehab program for nine months. From the mid 1980s to the early 1990s, Phillips performed as a singer and toured with a re-formed version of The Mamas & the