Movies:
* The Post (2017) as Barbara "Babs" Howar
* The Last Castle (2001) as Sergeant Major Janice "Jan" Winter
* The Green Mile (1999) as Mrs. Percy
* The Insider (1999) as Legal Aide
* The Horse Whisperer (1998) as Ellie
* One True Thing (1998) as Denise
* The Crucible (1996) as Ann Putnam, Jr.
* The Client (1994) as Angela
* Sleepless in Seattle (1993) as Becky
* The Joy Luck Club (1993) as Ying-Ying St. Clair
* My Cousin Vinny (1992) as Lisa Marie
* Thelma & Louise (1991) as Waitress (uncredited)
* Dick Tracy (1990) as Tess Trueheart (singing voice)
Television:
* The Good Wife (2010-2016) as Judge Christine Baranski (recurring role)
* Law & Order: Special Victims Unit (2009) as Mrs. Delacorte
* Law & Order: Criminal Intent (2007) as Brenda
* ER (1994-2009) as Nurse Connie (recurring role)
* Chicago Hope (1994-1999) as Sister Mary Catherine (recurring role)
* The Sopranos (1999-2007) as Gloria Trillo's Therapist (1 episode)
* The Practice (1997-2004) as Judge Eleanor Hale (recurring role)
* Frasier (1993-2004) as Dr. Claire (1 episode)
* Murder, She Wrote (1984-1996) as Mrs. Potter (1 episode)
This is not an exhaustive list, but it includes some of her most notable film and television work. You can find more information on her filmography on websites like IMDb.