Christina Applegate (born November 25, 1971) is an American actress and dancer. As a child 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 (for her guest role in the sitcom Friends) 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). She has also starred in the 2005 Broadway revival of the musical Sweet Charity, for which she received a nomination for the Tony Award for Best Actress in a Musical. Applegate has played the lead role in the television sitcoms Jesse (1998–2000), Samantha Who? (2007–2009) and Up All Night (2011–12), and in the Netflix dark tragicomedy series Dead to Me (2019–2022).