Who’s gone: Rick Schroder, Kim Delaney
Who’s new: Mark-Paul Gosselaar
Plot twists: Gosselaar’s dad and Sipowicz don’t like each other, and Andy’s not too happy about his newest partner.
Once and Again
Who’s gone: Mark Valley
Who’s new: Steven Weber, Eric Stoltz
Plot twists: Look for slightly less serious subject matter.
Who’s gone: Jason Kravits
Who’s new: Ron Livingston
Plot twists: With more kids in the mix, expect more tales from the courtroom and the playpen.
Who’s new: Michael J. Fox (returning for three episodes), Farrah Fawcett, Queen Latifah
Plot twists: The mayor and the former poster girl hook up.
CSI: Crime Scene Investigation
Who’s new: Robert David Hall, Eric Szmanda as regulars
Plot twists: More high-tech gadgets have been added to help solve cases.
Who’s gone: Julie Warner, Christian de la Fuente
Who’s new: Orla Brady, Meredith Eaton
Plot twists: Surf’s up as the firm moves from Century City to Venice beach.
The King of Queens
Who’s new: Nicole Sullivan
Plot twists: The blue-collar couple continue to try to conceive.
Touched by an Angel
Who’s new: Valerie Bertinelli
Plot twists: New hip angel targets teens.
Who’s gone: Robert Downey Jr., Taye Diggs, James LeGros, Lucy Liu
Who’s new: James Marsden, Julianne Nicholson, Regina Hall, Josh Hopkins
Plot twists: Downey’s gone, but Ally may find love again (Marsden).
Who’s new: Jeri Ryan, Michael Rapaport, Leslie Jordan
Plot twists: Winslow High’s newest teachers don’t share the values of the existing staff.
Who’s new: Jensen Ackles, Kevin Durand
Plot twists: Show will kick into a higher sci-fi gear.
Who’s new: Richard Gere, Pierce Brosnan, Dennis Weaver, Jon Lovitz
Plot twists: Another homage to Halloween and a skewering of literary classics.
Who’s new: Lucy Lawless, Cary Elwes, Annabeth Gish
Plot twists: Even with Mulder out of the picture, creator Chris Carter promises to keep fans intrigued.
Who’s new: Sherry Stringfield, Michael Gross, Mary McDonnell
Plot twists: More heartache for Anthony Edwards and Eriq LaSalle — who are making this their last season.
Law & Order
Who’s new: Elisabeth Rohm
Who’s gone: Angie Harmon
Plot twists: Ripped from the headline storylines will continue to surface.
The West Wing
Who’s new: Ron Silver, Connie Britton, Evan Handler
Plot twists: President Bartlet’s campaign for a second term includes New Hampshire flashbacks.
Buffy the Vampire Slayer
Who’s gone: Anthony Stewart Head
Plot twists: Buffy’s gone to the underworld, but is she really dead?
Who’s gone: Flex Alexander
Who’s new: Fred Willard guest stars.
Plot twists: Relationship turmoil continues to affect the women’s lives.
Who’s gone: John Wesley Shipp
Who’s new: Busy Phillips, Ken Marino
Plot twists: Will the sun-soaked California lifestyle affect Dawson? Will the other kids survive college?
Who’s gone: Donald Faison, Sarah-Jane Potts
Who’s new: Amy Jo Johnson
Plot twists: With both Ben and Noel back in the picture, Miss Porter realizes that two isn’t necessarily better than one.
Who’s new: Milo Ventimiglia
Plot twists: Alexis Bledel is smitten when Luke’s nephew arrives in town.