Debra Messing Upcoming Appearances

Conclusion. After his legal tussle with Karen, Jack moves in with Will, who is reeling from reversals in his career and love life. Ben: Gregory Hines. Alex: Donald Berman. Houseboy: Michael Edward Thomas.

Graduation jitters jolt Jack, named the Most Popular Student Nurse and tapped to deliver a speech that Will fills with murky metaphors. “If you don t hold on tight,” Will writes, “[dreams] will slip away.”

Part 1 of two. It s wedding bells for Karen and Lyle, readying for a Las Vegas wingding. Jennifer Lopez appears briefly as herself; Tim Curry plays Lyle s lecherous brother. Lyle: John Cleese. Leo: Harry Connick Jr.

Will s apartment becomes a sassy snakepit after a break-in at Grace s place drives her to move in with him and Jack. Meanwhile, a feuding Jack and Karen kvetch and make up. Mipanko: Derek Basco. Brian: David Lee Russek.

Conclusion. Jennifer Lopez sings and dances at Karen and Lyle s wedding in a glitzy number that features Jack in the chorus. Marion: Tim Curry. Leo: Harry Connick Jr. Lyle: John Cleese. Beverley: Leslie Jordan.

Jennifer Lopez shares some rowdy scenes with Jack and Karen, pitching J-Lo a ballad Kar wrote. Meanwhile, Leo s infidelity tests Grace. Leo: Harry Connick Jr. Subway Passenger: Jason Landau. Directed by James Burrows.

At Grace s interior-design firm, an impressionable new intern (Natasha Lyonne) causes chaos by emulating Karen. Meanwhile, Will and Jack muck up a gay-sensitivity seminar for local cops. Terry: Suzanne Krull. Annie: Henriette Mantel.

Janet Jackson spoofs herself, pitting Jack in a dance-off for a backup-dancer gig against an aging trouper: Karen s ex-lover (Will Arnett). Vince: Bobby Cannavale. Lieutenant: Steve Ryan. Choreographer: Andrew Ableson.

Free food lures Grace to AA, where she links up again with wacky Val (Molly Shannon); a new gay TV network relishes Jack s earthy ideas. Like a nude variation of “Jeopardy.” Tim: Mark Harelik. Mitchell: Jon Kinnally.

Bebe Neuwirth plays herself in a spoof that finds Jack and Karen bemoaning the ends of “Frasier,” “Friends” and “Sex in the City.” Meanwhile, Will s challenged by a fling with a cop (Bobby Cannavale). Nonny: Sharon Osbourne.

A “Cyrano de Bergerac”-style plot has Jack borrowing Will s words to impress a crush (Patrick Dempsey), while an ex (Jeremy Piven) asks an amazed Grace to join him in a threesome with his new lover (Maria Pitillo).

A new upstairs neighbor (Stephen Tobolowsky) riles Grace; bad vibes beset Jack, who s working as an exec at a gay TV network, where he s unnerved that “everyone is so smart.” Tim: Mark Harelik. Jimmy: Sam Pancake.

A birthday party for Will (who s 40 going on 37) is an uneasy celebration, thanks to a symbolic gift from his new lover that betokens commitment. The strangest present: a nude portrait of Will that s lacking in certain details.

The conclusion of a flashback to a memorable Thanksgiving in 1985 reveals how Will and Jack became pals; and how Karen ended up with hubby Stan. Bobbi: Debbie Reynolds. Martina Navratilova plays herself in a cameo.

Divorce stress rattles Grace, who can t handle newlywed clients, so Karen takes over the job with an uncharacteristic flourish. A doomed gay bookstore gets help from Will. Sort of. Linus: Roscoe Lee Browne.

Kristin Davis (“Sex and the City”) plays a doting soul mate of Will s lover, whose sweetness belies a deep-rooted jealousy. Meanwhile, Karen s stint as Jack s assistant at OutTV proves disastrous. Vince: Bobby Cannavale. Tim: Mark Harelik.

Will and Jack do battle over the same lover (Paul Fitzgerald), while a freaked-out Grace learns she has a “six-toe beau” (Ken Marino).

Part 1 of two. Memories of Leo haunt Grace as their wedding anniversary nears and she readies to get back in the dating game. Meanwhile, Karen and Jack fix each other up on dates, which, of course, turn out disastrously.

Divorce angst ruffles Grace in this two-parter s conclusion, which also concerns Jack s plan for a has-been commercial star (Victor Garber), signed up as an OutTV spokesman. Rip Taylor has a cameo as his irrepressible self.

A marital crisis upsets Grace, who reluctantly confides in Will after leaving Leo in Cambodia; nursing school flusters Jack, intimidated by a no-nonsense instructor (Lea Delaria) who gets set straight by Karen.

Part 1 of two. A chaotic Thanksgiving with Will s lover s folks finds Grace attracted to a young hunk, and Jack privy to a sex secret that could tear the family apart. Meanwhile, Will cooks and tries to keep peace. Ro: Jamie-Lynn DiScala.

Conclusion. Turkey Day chaos continues amid sexual rivalry that pits Grace against Karen for the attentions of a hottie. A much younger hottie. Meanwhile, tensions surround a revelation involving Will s lover s sister (Jamie-Lynn DiScala).

Will s romance becomes strained because Matt (Patrick Dempsey) is still in the closet. Roger: Tony Carreiro. Mike: Stan Cahill.

Grace fears Marilyn s wrath for breaking her beloved figurine. It s an accident Grace opts to hide, but she s hard-pressed to hide her guilt. Elsewhere, Karen s stepdaughter returns, prompting a bittersweet reunion. Marilyn: Blythe Danner.

Jeff Goldblum guest stars as a spiteful magnate out to bankrupt Karen over a high-school affront that scarred his psyche. Also, a secret emerges in the life of Will s lover Vince that, unfortunately, becomes known to Grace and Jack.