Christine Jane Baranski (born May 2, 1952) is an American actress. She is a 15-time Primetime Emmy Award nominee, winning once in 1995 for Outstanding Supporting Actress in a Comedy Series for her role as Maryann Thorpe in the sitcom Cybill (1995–1998). Baranski has received further critical acclaim for her performance as Diane Lockhart in the legal drama series The Good Wife (2009–2016) and its spin-off series The Good Fight (2017–2022).
Baranski has appeared in several television films, including To Dance with the White Dog (1993), Eloise at the Plaza and Eloise at Christmastime (both 2003), and Who Is Simon Miller? (2011). Her major Broadway credits include Hide and Seek (1980), Hurlyburly (1984), The House of Blue Leaves (1986), Nick & Nora (1991), and Boeing Boeing (2008). Baranski has also appeared in numerous films, such as Reversal of Fortune (1990), The Birdcage (1996), Cruel Intentions (1999), How the Grinch Stole Christmas (2000), Chicago (2002), Mamma Mia! (2008), Into the Woods (2014), and Mamma Mia! Here We Go Again (2018).