Christina Applegate (born November 25, 1971) is an American actress, known for playing Kelly Bundy on the FOX Broadcasting Company sitcom Married… with Children. She has since established a film and television career, with major roles in several pictures, such as Don't Tell Mom the Babysitter's Dead, The Sweetest Thing, Anchorman, The Big Hit and Farce of the Penguins. She has also starred in numerous productions including the 2005 Broadway revival of the musical Sweet Charity. More recently, she played the lead character Samantha Newly in the ABC sitcom Samantha Who?.She is also voicing in Alvin and the Chipmunks 2 : The Squeakquel ,in theaters December 25, 2009, as one of the chipettes.

Applegate was born in Hollywood, California. Her father, Robert W. Applegate, was a record producer and record company executive, and her mother, Nancy Lee Priddy, was a singer and actress. Her parents split up shortly after her birth. She has two half-siblings (Alisa and Kyle) from her father's remarriage. Following her parents' divorce, her mother had a relationship with musician Stephen Stills. It was through Stills' friendship with fellow musicians Paul Kantner and Grace Slick that Applegate became friends with their daughter, China Kantner.

At the age of three months, Christina Applegate made her TV debut, appearing with her mother in the soap Days of Our Lives and later, at age five, in a commercial for Playtex. Her first big screen appearance followed at age 7, when she was seen in the 1979 film, Jaws of Satan (a.k.a. King Cobra), followed by 1981's Beatlemania. She debuted in a television movie as Young Grace Kelly in the biopic, Grace Kelly (1983, opposite Cheryl Ladd), and appeared on her first TV series in Showtime's political comedy, Washingtoon (1985), in which she played a Congressman's daughter. She was also spotted as a guest in the shows, Father Murphy (1981) and Charles in Charge (1984 and 1985).