Joyce Jillson (December 26, 1945 – October 1, 2004) was a syndicated newspaper columnist, best-selling author, actress, and astrologer, whose column was syndicated worldwide in more than 200 papers and magazines.
Born Joyce Twichell in Cranston, Rhode Island, she attended Boston University on an opera scholarship. She began her acting career in New York City, where she appeared on Broadway in the Anthony Newley musical, The Roar of the Greasepaint – The Smell of the Crowd. She starred as Jill Smith in ABC Television's top rated series Peyton Place. She played the lead role in the 1973 cult action spoof Superchick. She also appeared in the 1973 Columbo episode 'Any Old Port in a Storm' and also had a small role in the 1976 exploitation film Slumber Party '57.
She began presenting horoscope reports on Los Angeles in 1973, and was the official astrologer for Twentieth Century Fox Studios, suggesting the most astrologically favorable dates for movie openings, including Star Wars on May 25, 1977. She was the official astrologer for the Los Angeles Dodgers as well as a media consultant to the Ford Motor Company on the launch of the Ford Taurus.
She was also an author, writing Real Women Don't Pump Gas, The Fine Art of Flirting, "A Year of Good Luck", and Joyce Jillson's Lifesigns. Her final manuscripts, Astrology for Dogs and Astrology for Cats were published posthumously.
Jillson was married to Joseph Gallagher from 1969 until their divorce in 1981; they had no children. Jillson died of kidney failure at Cedars-Sinai Medical Center at age 58. She had been suffering from diabetes.