Mariclare Costello
- Known for
- Acting
- Born
- February 6, 1936
- Died
- April 17, 2026
- Birthplace
- Peoria, Illinois, USA
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.
Filmography
Shadow of the Blair Witch 2000
as Kathy Patterson
Indecent Proposal 1993
as David's Mother
She Said No 1990
as Susan Finn
Appearances 1990
as Rose
American Harvest 1987
as Mary Alice Duncan
Heart of a Champion: The Ray Mancini Story 1985
as Ellen Mancini
Victims for Victims: The Theresa Saldana Story 1984
as Jane Bladow
The Adventures of Buckaroo Banzai Across the 8th Dimension 1984
as Senator Cunningham
Nightmares 1983
as Adele Cooney (segment "The Bishop of Battle")
Skeezer 1982
as Barbara Thompson
Coward of the County 1981
as Emma Spencer
Ordinary People 1980
as Audrey
All God's Children 1980
as Winnie Naponic
The Boy Who Drank Too Much 1980
as Louise Carpenter
A Sensitive, Passionate Man 1977
as Pat Morris
Raid on Entebbe 1976
as Gabrielle Krieger
Territorial Men 1976
as Julia Baker
Conspiracy of Terror 1975
as Mrs. Warnall
After the Fall 1974
as Louise
The Gun 1974
as Beryl Strauss
The Execution of Private Slovik 1974
as Antoinette Slovik
Going Where I've Never Been: The Photography of Diane Arbus 1972
as Herself - Narrator
Let's Scare Jessica to Death 1971
as Emily
Pound 1970
as Honky Killer's Wife
Credits from TMDB.