Mariclare Costello
- Acting
- February 6, 1936 · Peoria, Illinois, USA
- April 17, 2026
Biography
Mariclare Catherine Costello (February 3, 1936 – April 17, 2026) was an American actress. She was a lifetime member of The Actors Studio. Costello's most notable role was that of Rosemary Hunter Fordwick on the television series The Waltons, from 1972 to 1977. In 1977, after her role on The Waltons, she played matriarch Maggie Fitzpatrick on the short-lived drama show The Fitzpatricks.
Known for
Filmography
- Shadow of the Blair Witch · Kathy Patterson
- Chicago Hope · Mother Mary Catherine
- Indecent Proposal · David's Mother
- She Said No · Susan Finn
- Appearances · Rose
- American Harvest · Mary Alice Duncan
- Heart of a Champion: The Ray Mancini Story · Ellen Mancini
- Victims for Victims: The Theresa Saldana Story · Jane Bladow
- Murder, She Wrote · Cassie Latham Burns
- The Adventures of Buckaroo Banzai Across the 8th Dimension · Senator Cunningham
- Nightmares · Adele Cooney (segment "The Bishop of Battle")
- Skeezer · Barbara Thompson
- Coward of the County · Emma Spencer
- Ordinary People · Audrey
- All God's Children · Winnie Naponic
- The Boy Who Drank Too Much · Louise Carpenter
- Hart to Hart · Anita Boyer
- The Incredible Hulk · Kay Wallace
- Lou Grant · Louise Larsen
- The Fitzpatricks · Maggie Fitzpatrick
- A Sensitive, Passionate Man · Pat Morris
- Raid on Entebbe · Gabrielle Krieger
- Territorial Men · Julia Baker
- Conspiracy of Terror · Mrs. Warnall
- After the Fall · Louise
- The Gun · Beryl Strauss
- The Execution of Private Slovik · Antoinette Slovik
- Kojak · Diane Gordon
- Going Where I've Never Been: The Photography of Diane Arbus · Self
- The Waltons · Mrs. Rosemary Fordwick, Miss Rosemary Hunter
- Let's Scare Jessica to Death · Emily
- Pound · Honky Killer's Wife