Christina Applegate (born November 25, 1971) is an American actress and dancer. As an adolescent actress, she started playing the role of Kelly Bundy on the Fox sitcom Married... with Children (1987–1997). In her adult years, Applegate established a film and television career, winning an Emmy Award and earning Tony and Golden Globe nominations. Applegate has had major roles in several films, including Don't Tell Mom the Babysitter's Dead (1991), The Big Hit (1998), The Sweetest Thing (2002), Grand Theft Parsons (2003), Anchorman: The Legend of Ron Burgundy (2004) and its sequel Anchorman 2: The Legend Continues (2013), Hall Pass (2011), Vacation (2015) and Bad Moms (2016). On October 20, 2001, Applegate married actor Johnathon Schaech in Palm Springs, California. Schaech filed for divorce in December 2005, citing irreconcilable differences, and the divorce was finalized in August 2007. In 2009, she began dating musician Martyn LeNoble. The couple became engaged on Valentine's Day 2010, and married on February 23, 2013, at their Los Angeles home. It is the second marriage for both. They have one daughter, Sadie Grace, born in January 2011. Applegate is a vegetarian, and in 2007, appeared in an anti-fur advertisement for PETA. On August 3, 2008, People reported that Applegate had been diagnosed with breast cancer. This was confirmed by her representative who said in a statement, "Christina Applegate was diagnosed with an early stage of breast cancer. Benefiting from early detection through a doctor-ordered MRI, the cancer is not life -threatening. Christina is following the recommended treatment of her doctors and will have a full recovery. No further statement will be issued at this time. "On August 19, 2008, it was announced that Applegate was cancer-free after a double mastectomy, though cancer was found in only one breast. She has an inherited genetic trait, a BRCA1 mutation, which can trigger breast cancer. Her mother, Nancy Priddy, is a breast-cancer survivor. Applegate said when she first was diagnosed, "I was just shaking and then also immediately, I had to go into 'take-care-of-business-mode' which included a change to a more healthy diet.

For more information press link below:
https://en.wikipedia.org/wiki/Christina_Applegate