Actor
Mariclare Costello
February 6, 1936 · 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.
Notable work
Often works with
Judd Hirsch
2 titles together
Ordinary People, She Said No
Dinah Manoff
2 titles together
Ordinary People, Raid on Entebbe
Fredric Lehne
2 titles together
Ordinary People, Coward of the County
Matt Clark
2 titles together
The Adventures of Buckaroo Banzai Across the 8th Dimension, The Execution of Private Slovik
William Traylor
2 titles together
The Adventures of Buckaroo Banzai Across the 8th Dimension, The Execution of Private Slovik
Bob Harks
2 titles together
The Incredible Hulk, Lou Grant
Full filmography · 31
Shadow of the Blair Witch
as Kathy Patterson
20005.7
Indecent Proposal
as David's Mother
19936.4
She Said No
as Susan Finn
1990
Appearances
as Rose
1990
American Harvest
as Mary Alice Duncan
1987
Heart of a Champion: The Ray Mancini Story
as Ellen Mancini
1985
Victims for Victims: The Theresa Saldana Story
as Jane Bladow
1984
The Adventures of Buckaroo Banzai Across the 8th Dimension
as Senator Cunningham
19846
Nightmares
as Adele Cooney (segment "The Bishop of Battle")
19835.7
Skeezer
as Barbara Thompson
1982
Coward of the County
as Emma Spencer
1981
Ordinary People
as Audrey
19807.4