Mariclare Costello
Acting
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.
Filmography 32
Movies (24)
Shadow of the Blair Witch2000Kathy Patterson
Indecent Proposal1993David's Mother
She Said No1990Susan Finn
Appearances1990Rose
American Harvest1987Mary Alice Duncan
Heart of a Champion: The Ray Mancini Story1985Ellen Mancini
Victims for Victims: The Theresa Saldana Story1984Jane Bladow
The Adventures of Buckaroo Banzai Across the 8th Dimension1984Senator Cunningham
Nightmares1983Adele Cooney (segment "The Bishop of Battle")
Skeezer1982Barbara Thompson
Coward of the County1981Emma Spencer
Ordinary People1980Audrey
All God's Children1980Winnie Naponic
The Boy Who Drank Too Much1980Louise Carpenter
A Sensitive, Passionate Man1977Pat Morris
Raid on Entebbe1976Gabrielle Krieger
Territorial Men1976Julia Baker
Conspiracy of Terror1975Mrs. Warnall
After the Fall1974Louise
The Gun1974Beryl Strauss
The Execution of Private Slovik1974Antoinette Slovik
Going Where I've Never Been: The Photography of Diane Arbus1972Herself - Narrator
Let's Scare Jessica to Death1971Emily
Pound1970Honky Killer's Wife
