Famous as a Playboy model and as the one-time girlfriend of Hugh Hefner, Cox is also known for her appearances in the films Drive-In, Looker, and Logan's Run.
She rose to fame at the age of twenty-one, having been chosen as Playboy's December, 1977 Playmate of the Month.
She appeared in 1970s episodes of Dukes of Hazzard and Vega$.
She and her three siblings grew up in Dallas, Texas. She was married several times and raised two children.
She and Ola Ray were both Playboy centerfolds.