Mariclare 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.

Movies & TV Shows

1. Indecent Proposal (1993) — David's Mother
2. Ordinary People (1980) — Audrey
3. The Incredible Hulk (1977) — Kay Wallace
4. The Adventures of Buckaroo Banzai Across the 8th Dimension (1984) — Senator Cunningham
5. Murder, She Wrote (1984) — Cassie Latham Burns
6. Let's Scare Jessica to Death (1971) — Emily
7. Kojak (1973) — Diane Gordon
8. Hart to Hart (1979) — Anita Boyer
9. The Waltons (1972) — Mrs. Rosemary Fordwick
10. Nightmares (1983) — Adele Cooney (segment "The Bishop of Battle")
11. Chicago Hope (1994) — Mother Mary Catherine
12. Raid on Entebbe (1976) — Gabrielle Krieger
13. Lou Grant (1977) — Louise Larsen
14. Shadow of the Blair Witch (2000) — Kathy Patterson
15. The Execution of Private Slovik (1974) — Antoinette Slovik
16. Coward of the County (1981) — Emma Spencer
17. Victims for Victims: The Theresa Saldana Story (1984) — Jane Bladow
18. Pound (1970) — Honky Killer's Wife
19. Heart of a Champion: The Ray Mancini Story (1985) — Ellen Mancini
20. The Boy Who Drank Too Much (1980) — Louise Carpenter
21. The Gun (1974) — Beryl Strauss
22. She Said No (1990) — Susan Finn
23. Conspiracy of Terror (1975) — Mrs. Warnall
24. A Sensitive, Passionate Man (1977) — Pat Morris
25. All God's Children (1980) — Winnie Naponic
26. The Fitzpatricks (1977) — Maggie Fitzpatrick
27. Appearances (1990) — Rose
28. Skeezer (1982) — Barbara Thompson
29. Going Where I've Never Been: The Photography of Diane Arbus (1972) — Herself - Narrator
30. After the Fall (1974) — Louise
31. American Harvest (1987) — Mary Alice Duncan
32. Territorial Men (1976) — Julia Baker