Guest stars include Parker Posey as Jack's stylish supervisor ("Loose Lips Sinks Relationships," "Jingle Balls"), Matt Damon as a closeted choral singer ("A Chorus Lie"), Glenn Close as an eccentric photographer ("Hocus Focus"), and her former co-star Michael Douglas ("Fagel Attraction") as a "detective" with the hots for Will. There are also recurring guests, like Debbie Reynolds as Grace's drama queen mother ("Moveable Feast," a double-length episode), director Sydney Pollack as Will's wayward father ("Cheatin' Trouble Blues"), and Jack’s favorite diva, Cher, as herself ("A.I.: Artificial Insemination," the season finale). By the end of season four, Will and Grace will still be single, Karen’s husband will still be incarcerated (but at least she'll have maid Rosario to keep her company), and Jack will still be, as he used to say, "Just Jack!" As always, the year will end with a cliffhanger as Will and Grace decide to have a baby together. --Kathleen C. Fennessy