Year	Title	Role	Notes
1979	California Fever	Lisa Bannister	Episode: "The Girl from Somewhere"
1984	Faerie Tale Theatre	Snow White	Episode: "Snow White and the Seven Dwarfs"
1993	Performance	Beatrice-Joanna	Episode: "The Changeling"
1995	If Not for You	Jessie Kent	8 episodes
1996	Tracey Takes On...	Judge Loring	Episode: "Vanity"
1996	Tales from the Crypt	Laura Kendall	Episode: "Horror in the Night"
1999	The Scarlet Pimpernel	Lady Margaret Blakeney	3 episodes
2001	Table 12	Mel	Episode: "Preserves"
2003	The Brotherhood of Poland, New Hampshire	Helen Shaw	7 episodes
2006	Three Moons over Milford	Laura Davis	8 episodes
2007	Law and Order: Special Victims Unit	Dr. Faith Sutton	Episode: "Harm"
2007–2008	Freezing	Elizabeth	3 episodes
2008	Agatha Christie: Poirot	Dame Celia Westholme	Episode: "Appointment with Death"
2009	10 Minute Tales	The Ex-Wife	Episode: "The Running of the Deer"
2010–present	Downton Abbey	Cora, Countess of Grantham	29 episodes\nScreen Actors Guild Award for Outstanding Performance by an Ensemble in a Drama Series\nNominated—Golden Globe Award for Best Actress – Miniseries or Television Film\nNominated—Primetime Emmy Award for Outstanding Lead Actress in a Miniseries or a Movie\nNominated—Satellite Award for Best Actress – Miniseries or Television Film