KITTY MAKES A GRAND ENTRANCE INTO POLITICS, ON ABC'S "BROTHERS & SISTERS"

Gilles Marini Returns as Luc Laurent

"A Valued Family" � The Walker family shares love and loss on Valentine's Day as Sarah rediscovers the love of her life (guest starring Gilles Marini as Luc Laurent), Kitty makes a grand but heartfelt entree in to politics with her family and new campaign manager by her side (guest starring Cheryl Hines as Buffy), Justin and Rebecca face the struggles of impending parenthood and Holly makes a tough decision about what to do with her shares of Ojai, on "Brothers & Sisters," SUNDAY, FEBRUARY 21 (10:01-11:00 p.m., ET), on the ABC Television Network.

"Brothers & Sisters" stars Dave Annable as Justin Walker, Maxwell Perry Cotton as Cooper Whedon, Kerris Lilla Dorsey as Paige, Sally Field as Nora Holden, Calista Flockhart as Kitty Walker, Balthazar Getty as Thomas Walker, Rachel Griffiths as Sarah Walker, Luke Grimes as Ryan Lafferty, Luke Macfarlane as Scotty Wandell, Rob Lowe as Senator Robert McCallister, Matthew Rhys as Kevin Walker, Ron Rifkin as Saul Holden, Emily VanCamp as Rebecca Harper and Patricia Wettig as Holly Harper.

Guest starring are Ken Olin as David Caplan, Daniel and David Oshionebo as Evan McCallister, Jay Karnes as Roy Scovell, Marguerite Moreau as the gallery owner, Gilles Marini as Luc Laurent, Cheryl Hines as Buffy McCreary and Matt Letscher as Alec Tyler.

"A Valued Family" was written by Sarah Goldfinger and Michael Cinquemani and directed by Michael Schultz.

The series broadcast in 720 Progressive (720P), ABC's selected HDTV format, with 5.1-channel surround sound and Spanish subtitles via secondary closed captioning. A TV parental guideline will be assigned closer to airdate.

For more information on "Brothers & Sisters," visit ABC.com.