| Year | Title | Role | Notes |
| 1955–1959 | Love of Life | Vanessa Dale Raven | Unknown episodes |
| 1965 | The Patty Duke Show | Miss Castle | Episode: "My Cousin the Heroine" |
| 1969 | The Jackie Gleason Show | Donna Douglas | Episode: "The Honeymooners: The Honeymoon Is Over" |
| 1973 | Emergency! | Eunice Evans | Episode: "Computer Error" |
| 1974–1979 | Little House on the Prairie | Grace Snider Edwards | 26 episodes |
| 1974 | Gunsmoke | Maylee Baines | Episode: "The Foundling" |
| The Waltons | Martha Rudge | Episode: "The Car" |
| Gunsmoke | Agnes Benton | Episode: "In Performance of Duty" |
| 1975 | Kojak | Joan Milner | Episode: "The Good Luck Bomber" |
| The Legend of Lizzie Borden | Sylvia Knowlton | TV movie |
| 1976 | The Rockford Files | Casey Patterson | Episode: "The Oracle Wore a Cashmere Suit" |
| 1977 | Washington: Behind Closed Doors | Joan Bailey | 2 episodes |
| Killer on Board | Debra Snowden | Television movie |
| 1979 | Hart to Hart | Myra Bensinger | Episode: "Murder Between Friends" |
| Salem's Lot | Ann Norton | Television movie |
| 1980 | Rape and Marriage: The Rideout Case | Norma Joyce | Television movie |
| Barney Miller | Ellen Milford | Episode: "The Delegate" |
| 1981 | ABC Afterschool Specials | Miriam Scott | Episode: "She Drinks a Little" |
| Knots Landing | Dr. Ruth West | Episode: "Critical Condition" |
| A Long Way Home | JoAnn Booth | TV movie |
| 1982–1988 | St. Elsewhere | Ellen Craig | 70 episodesPrimetime Emmy Award for Outstanding Supporting Actress in a Drama Series (1986–87)Viewers for Quality Television Award for Best Supporting Actress in a Quality Drama SeriesNominated—Primetime Emmy Award for Outstanding Supporting Actress in a Drama Series |
| 1982 | Barney Miller | Emily Loftis | Episode: "Inquiry" |
| Lou Grant | Claire | Episode: "Unthinkable" |
| 1983 | V | Lynn Bernstein | 2 episodes |
| 1985 | Hotel | Olga Petrovsky | Episode: "Passports" |
| 1986 | The Deliberate Stranger | Louise Bundy | TV movie |
| 1987 | Right to Die | Lillian | TV movie |
| 1988 | The Golden Girls | Barbara Thorndyke | Episode: "Dorothy's New Friend" |
| 1989 | Matlock | Lorraine Maslin | Episode: "The Blues Singer" |
| Murder, She Wrote | Marilyn North | Episode: "Seal of the Confessional" |
| 1989–1990 | Midnight Caller | Hillary Townsend-King | 4 episodes |
| 1990 | The Great Los Angeles Earthquake | Anita Parker | |
| Wiseguy | Harriet Weiss | 2 episodes |
| 1992 | Law | Gloria Lee | Episode: "Diet, Diet My Darling" |
| Room for Two | Francine Luboff | Episode: "Pilot" |
| I'll Fly Away | Beth Lekatzis | Episode: "Fragile Truths" |
| 1994 | SeaQuest DSV | Secretary General of the UEO | Episode: "The Last Lap at Luxury" |
| 1995 | The Courtyard | Cathleen Fitzgerald | Television film |
| 1995–1998 | Home Improvement | Lucille Taylor | 5 episodes |
| 1996 | The Faculty | Katherine | Episode: "Bus Stop" |
| 1997–1998 | ER | Ruth Greene | 2 episodes |
| 1997–1999 | Boy Meets World | Dean Bolander | 5 episodes |
| The Practice | Joanne Oz | 2 episodes |
| 1997 | Touched by an Angel | Emily | Episode: "Venice" |
| Sleeping with the Devil | Stasha Dubrovich | Television movie |
| 1998 | Stargate SG-1 | Linea | Episode: "Prisoners" |
| 1999–2002 | Once and Again | Barbara Brooks | 7 episodes |
| 2000 | Touched by an Angel | Lucy Scribner | Episode: "The Grudge" |
| 2002 | Firefly | Patience | Episode: "Serenity" |
