Mariclare Costello
Acting
Born 1936-02-06 · 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.
Known for
6.4
Indecent Proposal
1993 · Movie
6.0
The Adventures of Buckaroo Banzai Across the 8th Dimension
1984 · Movie
7.4
Ordinary People
1980 · Movie
10.0
Skeezer
1982 · Movie
10.0
Appearances
1990 · Movie
8.7
The Gun
1974 · Movie
9.0
American Harvest
1987 · Movie
6.1
Raid on Entebbe
1976 · Movie
8.0
After the Fall
1974 · Movie
7.4
The Execution of Private Slovik
1974 · Movie
5.7
Nightmares
1983 · Movie
7.5
Victims for Victims: The Theresa Saldana Story
1984 · Movie
7.7
She Said No
1990 · Movie
6.5
Coward of the County
1981 · Movie
7.0
Conspiracy of Terror
1975 · Movie
6.5
All God's Children
1980 · Movie
6.2
Let's Scare Jessica to Death
1971 · Movie
6.0
Heart of a Champion: The Ray Mancini Story
1985 · Movie
5.7
Shadow of the Blair Witch
2000 · Movie
5.5
A Sensitive, Passionate Man
1977 · Movie
4.8
Pound
1970 · Movie
6.0
Going Where I've Never Been: The Photography of Diane Arbus
1972 · Movie
4.7
The Boy Who Drank Too Much
1980 · Movie
Territorial Men
1976 · Movie