

2026-04-17
1936-02-0690 years, 8 months, and 28 days old
Peoria, Illinois, USA
No
Female
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.

| Title | ||||||
|---|---|---|---|---|---|---|
The Adventures of Buckaroo Banzai Across the 8th Dimension | Senator Cunningham | 6 | 1984-08-10 | 3.9721 | ||
Let's Scare Jessica to Death | Emily | 6.214 | 1971-08-27 | 1.7312 | ||
Territorial Men | Julia Baker | 0 | 1976-07-30 | 0.5867 | ||
Ordinary People | Audrey | 7.456 | 1980-09-19 | 5.522 | ||
The Execution of Private Slovik | Antoinette Slovik | 7.4 | 1974-03-13 | 1.5506 | ||
The Boy Who Drank Too Much | Louise Carpenter | 4.7 | 1980-02-06 | 1.0939 | ||
Coward of the County | Emma Spencer | 6.5 | 1981-10-07 | 1.3993 | ||
Heart of a Champion: The Ray Mancini Story | Ellen Mancini | 6 | 1985-05-01 | 1.1001 | ||
The Gun | Beryl Strauss | 8.7 | 1974-11-13 | 0.7235 | ||
Appearances | Rose | 10 | 1990-06-17 | 0.5601 |