Acting
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
Film · 2000
Chicago Hope
Series · 1994
Indecent Proposal
Film · 1993
Appearances
Film · 1990
She Said No
Film · 1990
American Harvest
Film · 1987
Heart of a Champion: The Ray Mancini Story
Film · 1985
The Adventures of Buckaroo Banzai Across the 8th Dimension
Film · 1984
Victims for Victims: The Theresa Saldana Story
Film · 1984
Murder, She Wrote
Series · 1984
Nightmares
Film · 1983
Skeezer
Film · 1982
Coward of the County
Film · 1981
Ordinary People
Film · 1980
The Boy Who Drank Too Much
Film · 1980
All God's Children
Film · 1980
Hart to Hart
Series · 1979
A Sensitive, Passionate Man
Film · 1977
The Fitzpatricks
Series · 1977
Lou Grant
Series · 1977
The Incredible Hulk
Series · 1977
Territorial Men
Film · 1976
Raid on Entebbe
Film · 1976
Conspiracy of Terror
Film · 1975
The Execution of Private Slovik
Film · 1974
The Gun
Film · 1974
After the Fall
Film · 1974
Kojak
Series · 1973
Going Where I've Never Been: The Photography of Diane Arbus
Film · 1972
The Waltons
Series · 1972
The Waltons
Series · 1972
The Waltons
Series · 1972
Let's Scare Jessica to Death
Film · 1971
Pound
Film · 1970