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Mariclare Costello
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1972–1994
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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,...
Known for
Acting
Born
February 6, 1936
Place of birth
Peoria, Illinois, USA
Died
April 17, 2026
0 / 8
0%
Your avg
—
Active
1972–1994
Top rated
—
Known for
Acting
Born
February 6, 1936
Place of birth
Peoria, Illinois, USA
Died
April 17, 2026
SHOWS STARRING
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.