Cast
Mariclare Costello
Acting
Cast
Mariclare Costello
Known for
Acting
Born
1936-02-06
From
Peoria, Illinois, USA
Died
2026-04-17
Also known as Mariclare Catherine Costello
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.
Indecent Proposal
as David's Mother
The Adventures of Buckaroo Banzai Across the 8th Dimension
as Senator Cunningham
Ordinary People
as Audrey
Raid on Entebbe
as Gabrielle Krieger
Skeezer
as Barbara Thompson
Nightmares
as Adele Cooney (segment "The Bishop of Battle")
American Harvest
as Mary Alice Duncan
Let's Scare Jessica to Death
as Emily
The Execution of Private Slovik
as Antoinette Slovik
All God's Children
as Winnie Naponic
Pound
as Honky Killer's Wife
Territorial Men
as Julia Baker
Coward of the County
as Emma Spencer
Heart of a Champion: The Ray Mancini Story
as Ellen Mancini
Victims for Victims: The Theresa Saldana Story
as Jane Bladow
The Gun
as Beryl Strauss
After the Fall
as Louise
Conspiracy of Terror
as Mrs. Warnall
A Sensitive, Passionate Man
as Pat Morris
Appearances
as Rose
The Boy Who Drank Too Much
as Louise Carpenter
She Said No
as Susan Finn
Shadow of the Blair Witch
as Kathy Patterson
Going Where I've Never Been: The Photography of Diane Arbus
as Herself - Narrator