She was on the cover of the January 1990 issue of Playboy magazine.
Joan is a brunette.
In 1977, she graduated from Westbury High School in Houston, Texas.
Her dress size is 4 (US).
She was married to Eric Milan in 1977 until their divorce in 1984.
She wears size 9 (US) shoes.
Joan is 5 feet, 9½ inches tall.
She has the same birthday as Estella Warren, Eddie Vedder and William Kristol.
She started modelling at the age of 15.
Her Chinese Astrological sign is a Dog.
Her Astrological sign is Capricorn.