Mariclare Costello
Acting
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.
TV Shows(8)
Movies(24)
Shadow of the Blair Witch
Kathy Patterson
2000
Indecent Proposal
David's Mother
1993
She Said No
Susan Finn
1990
Appearances
Rose
1990
American Harvest
Mary Alice Duncan
1987
Heart of a Champion: The Ray Mancini Story
Ellen Mancini
1985
Victims for Victims: The Theresa Saldana Story
Jane Bladow
1984
The Adventures of Buckaroo Banzai Across the 8th Dimension
Senator Cunningham
1984
Nightmares
Adele Cooney (segment "The Bishop of Battle")
1983
Skeezer
Barbara Thompson
1982
Coward of the County
Emma Spencer
1981
Ordinary People
Audrey
1980
All God's Children
Winnie Naponic
1980
The Boy Who Drank Too Much
Louise Carpenter
1980
A Sensitive, Passionate Man
Pat Morris
1977
Raid on Entebbe
Gabrielle Krieger
1976
Territorial Men
Julia Baker
1976
Conspiracy of Terror
Mrs. Warnall
1975
After the Fall
Louise
1974
The Gun
Beryl Strauss
1974
The Execution of Private Slovik
Antoinette Slovik
1974
Going Where I've Never Been: The Photography of Diane Arbus
Herself - Narrator
1972
Let's Scare Jessica to Death
Emily
1971
Pound
Honky Killer's Wife
1970