Way back in 1990, when no one outside the English departments at Princeton and Yale knew who he was, Duchovny starred in a movie called "Julia Has Two Lovers." He played a creepy dude who called women he selected randomly from the phone book and pleasured himself during the conversations. On a related note, in the "X-Files" TV series, Fox Mulder had very little actual sex, but it is widely known that the character had a major porn addiction. In at least one episode he gets turned on watching a tape of a Bigfoot sighting.

In 1991 Duchovny co-starred with Mimi Rogers in "The Rapture." He played Randy (Randy!), a man of questionable ethics who is into seriously kinky sex. During the second half of the film, Randy finds religion, makes an honest woman out of Mimi's character and fathers a child before getting blown away by a disgruntled former employee.

In 1992 Duchovny began a long stint as narrator of "Red Shoe Diaries," a Showtime series that involved anonymous women who answered newspaper personals ads by describing their sordid sex lives in vivid detail.

On "The Larry Sanders Show" Duchovny had a few guest-starring stints playing "himself," a character who repeatedly demonstrates his infatuation with Larry.

Duchovny starred in 2002's "Full Frontal." I'm not too familiar with the movie's plot, but the title says it all.

On a 2003 episode of "Sex and the City" Duchovny guest-starred as Jeremy, an old flame of Carrie's who tries to rekindle the romance. But their renewed relationship is hindered by the fact that Jeremy resides in a mental institution. Was Jeremy there because he was a sex addict? It's unclear, but looking back -- knowing what we know now -- it does seem to be a distinct possibility.