Jerry Seinfeld, Julia Louis-Dreyfus, Jason Alexander, and Michael Richards will reunite on "Seinfeld" producer Larry David's "Curb Your Enthusiasm."HBO - Tuesday, September, 22, 2009, 1:22 AM

Four-time Emmy winner John Lithgow plays a creepy serial-killer on "Dexter." Showtime/Randy Tepper - Tuesday, September, 22, 2009, 1:22 AM

Wentworth Miller lands a guest-starring role (this time on the right side of the law) on NBC's high-profile cop series. "Law & Order: Special Victims Unit."NBC/Will Hart - Tuesday, September, 22, 2009, 1:22 AM

Drea de Matteo plays the newest wife and mother on "Desperate Housewives."ABC/Ron Tom - Tuesday, September, 22, 2009, 1:22 AM

Brian Austin Green plays bad guy Metallo on "Smallville."CW/Jack Rowand - Tuesday, September, 22, 2009, 1:22 AM

John Schneider will play the evil step dad of Liam on "90210."CW/Jaimie Trueblood - Tuesday, September, 22, 2009, 1:22 AM

Edward Norton is making his first-ever appearance on a live-action TV series with a guest star role on "Modern Family."Vito Amati/Wireimage.com - Tuesday, September, 22, 2009, 1:22 AM

Eddie Cibrian joins the cast of "CSI: Miami."CBS/Cliff Lipson - Tuesday, September, 22, 2009, 1:22 AM

Eric McCormack guest stars on "The New Adventures of Old Christine."Steve Granitz/Wireimage.com - Tuesday, September, 22, 2009, 1:22 AM

James Earl Jones plays an African dictator who enters "House's" care.Lester Cohen/Wireimage.com - Tuesday, September, 22, 2009, 1:22 AM

Ellen DeGeneres replaces Paula Abdul on the "American Idol" judging table.FOX - Tuesday, September, 22, 2009, 1:22 AM

"FlashForward" gives Seth MacFarlane a chance to actually appear in non-cartoon form and stretch his dramatic chops.Todd Williamson - Tuesday, September, 22, 2009, 1:22 AM

The Oscar-nominated Kathleen Turner brings her intimidating husky voice and no-nonsense demeanor to "Californication" as Charlie's (Evan Handler) new boss.Showtime/Jordin Althaus - Tuesday, September, 22, 2009, 1:22 AM

Jamie Bamber guest stars on "Dollhouse."FOX - Tuesday, September, 22, 2009, 1:22 AM

Former Disney teen queen Hilary Duff plays an ex-child star who wants to be normal in college on "Gossip Girl."CW/Giovanni Rufino - Tuesday, September, 22, 2009, 1:22 AM

Lauren Conrad has left "The Hills" scene and her vacant spot will now be filled by Kristin Cavallari.MTV - Tuesday, September, 22, 2009, 1:22 AM