Stage opening night Baranski made her
off-Broadway debut in
Coming Attractions at
Playwrights Horizons in 1980, and has appeared in several off-Broadway productions at the
Manhattan Theatre Club, starting with
Sally and Marsha in 1982. She was in the original 1983 off-Broadway version of
Sunday in the Park with George, but did not participate in the show's later Broadway run. Baranski made her
Broadway debut in
Hide & Seek in 1980. For her next Broadway performance, she played Charlotte in
Tom Stoppard's
The Real Thing, winning the
Drama Desk Award for Outstanding Featured Actress in a Play and
Tony Award for Best Featured Actress in a Play. She next replaced
Judith Ivey as Bonnie in
Hurlyburly,
mistress Bunny Flingus in the original Broadway production of
The House of Blue Leaves, Chris Gorman in
Rumors (for which she won her second
Tony),
Regrets Only,
Nick & Nora, and the
Encores! concert staging of
Follies. In 1992, she starred as Chloe in the original production of
Terrence McNally's
Lips Together, Teeth Apart, about two straight couples who spend a weekend in a gay community over the
Fourth of July weekend. She won her second
Drama Desk Award. At the
Kennedy Center in
Washington, D.C., Baranski starred as
Mrs. Lovett in
Sweeney Todd in 2002 (for which she won the 2003
Helen Hayes Award for Outstanding Actress in a Musical) and as the title character in
Mame in 2006. The show garnered two
Tony Awards (
Best Revival of a Play and
Best Actor in a Play for
Mark Rylance). The original cast included
Bradley Whitford (Bernard),
Kathryn Hahn (Gloria), Christine Baranski (Berthe),
Gina Gershon (Gabriella), and
Mary McCormack (Gretchen). The show closed on January 4, 2009, after 17 previews and 279 performances. Baranski also appeared in a one-night-only concert benefit performance of
Stephen Sondheim's
A Little Night Music for
Roundabout Theatre Company as Countess Charlotte Malcolm on January 12, 2009. The cast included
Vanessa Redgrave,
Natasha Richardson,
Victor Garber and
Marc Kudisch. In 2018, she was inducted into the
American Theater Hall of Fame. Baranski is due to make her first
West End appearance in a production of
Hay Fever in September 2026, which she described as a "dream come true".
Film Baranski has appeared in various film roles. Some of her better-known roles are as Katherine Archer in
The Birdcage (1996), Martha May Whovier in
How the Grinch Stole Christmas (2000), Mary Sunshine in
Chicago (2002) and Connie Chasseur in
The Ref (1994). Baranski received further recognition for her role as Tanya Chesham-Leigh in the hit musical film
Mamma Mia! (2008), and its sequel
Mamma Mia! Here We Go Again (2018). Baranski played Cinderella's stepmother in the 2014
film adaptation of the musical
Into the Woods. A few years later, Baranski received an
Emmy nomination for a guest starring role in the hit
NBC series Frasier as controversial
tough love radio psychiatrist Dr. Nora Fairchild. The episode, which was named for the character, parodied Dr.
Laura Schlessinger. The episode was pulled from
syndication by
Paramount. From 2009 to 2016, Baranski played the role of
Diane Lockhart, a top litigator and senior partner of a Chicago law firm on the
CBS series
The Good Wife. She was nominated for the
Primetime Emmy Award for Outstanding Supporting Actress in a Drama Series for six seasons of the series, in the years 2010 to 2015. Besides her work on
The Good Wife and the aforementioned guest appearances on
The Big Bang Theory, her other appearances in that period include
Ugly Betty in 2009 as Victoria Hartley, the haughty mother of
Betty's new boyfriend. From 2017 to 2022, Baranski reprised her role on
The Good Wife in a spin-off titled
The Good Fight. The show features Diane Lockhart joining another law firm after being forced to return to work. In the
79th Golden Globe Awards, she was nominated for the
Golden Globe Award for Best Actress – Television Series Drama for her work in the fifth season of the show. Since 2022 she has portrayed Agnes van Rhijn in the
Julian Fellowes-created
HBO period drama
The Gilded Age starring opposite
Carrie Coon,
Louisa Jacobson, and
Cynthia Nixon. The cast received a nomination for the
Screen Actors Guild Award for Outstanding Performance by an Ensemble in a Drama Series. ==Acting style and screen persona==