Person
Mariclare Costello
Actor· 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
The roles that explain the career.
Indecent Proposal
David's Mother · 1993
Ordinary People
Audrey · 1980
The Adventures of Buckaroo Banzai Across the 8th Dimension
Senator Cunningham · 1984
Let's Scare Jessica to Death
Emily · 1971
Nightmares
Adele Cooney (segment "The Bishop of Battle") · 1983
Raid on Entebbe
Gabrielle Krieger · 1976
The Incredible Hulk
1977
Murder, She Wrote
1984
Filmography
14 credits across 1 departments.
| Year | Title | Role | Type |
|---|---|---|---|
| 1993 | Indecent Proposal | David's Mother | Film |
| 1985 | Heart of a Champion: The Ray Mancini Story | Ellen Mancini | Film |
| 1984 | The Adventures of Buckaroo Banzai Across the 8th Dimension | Senator Cunningham | Film |
| 1984 | Victims for Victims: The Theresa Saldana Story | Jane Bladow | Film |
| 1983 | Nightmares | Adele Cooney (segment "The Bishop of Battle") | Film |
| 1981 | Coward of the County | Emma Spencer | Film |
| 1980 | Ordinary People | Audrey | Film |
| 1980 | The Boy Who Drank Too Much | Louise Carpenter | Film |
| 1976 | Raid on Entebbe | Gabrielle Krieger | Film |
| 1975 | Conspiracy of Terror | Mrs. Warnall | Film |
| 1974 | The Execution of Private Slovik | Antoinette Slovik | Film |
| 1972 | Going Where I've Never Been: The Photography of Diane Arbus | Herself - Narrator | Film |
| 1971 | Let's Scare Jessica to Death | Emily | Film |
| 1970 | Pound | Honky Killer's Wife | Film |
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