Mariclare Costello
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
as Kathy Patterson
Shadow of the Blair Witch
as Kathy Patterson
Indecent Proposal
as David's Mother
Indecent Proposal
as David's Mother
Appearances
as Rose
Appearances
as Rose
American Harvest
as Mary Alice Duncan
American Harvest
as Mary Alice Duncan
Victims for Victims: The Theresa Saldana Story
as Jane Bladow
Victims for Victims: The Theresa Saldana Story
as Jane Bladow
The Adventures of Buckaroo Banzai Across the 8th Dimension
as Senator Cunningham
The Adventures of Buckaroo Banzai Across the 8th Dimension
as Senator Cunningham
Nightmares
as Adele Cooney (segment "The Bishop of Battle")
Nightmares
as Adele Cooney (segment "The Bishop of Battle")
Coward of the County
as Emma Spencer
Coward of the County
as Emma Spencer
Ordinary People
as Audrey
Ordinary People
as Audrey
All God's Children
as Winnie Naponic
All God's Children
as Winnie Naponic
A Sensitive, Passionate Man
as Pat Morris
A Sensitive, Passionate Man
as Pat Morris
Raid on Entebbe
as Gabrielle Krieger
Raid on Entebbe
as Gabrielle Krieger
Territorial Men
as Julia Baker
Territorial Men
as Julia Baker
Conspiracy of Terror
as Mrs. Warnall
Conspiracy of Terror
as Mrs. Warnall
The Gun
as Beryl Strauss
The Gun
as Beryl Strauss
The Execution of Private Slovik
as Antoinette Slovik
The Execution of Private Slovik
as Antoinette Slovik
Pound
as Honky Killer's Wife
Pound
as Honky Killer's Wife