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Biography
Mariclare Catherine Costello 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.
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Filmography13 titles
She Said No
1990as Susan Finn
1990as Susan Finn
Murder, She Wrote
1984as Cassie Latham Burns
1984as Cassie Latham Burns
Ordinary People
1980as Audrey
1980as Audrey
The Incredible Hulk
1977as Kay Wallace
1977as Kay Wallace
Kojak
1973as Diane Gordon
1973as Diane Gordon
The Waltons
1972as Mrs. Rosemary Fordwick
1972as Mrs. Rosemary Fordwick
Hart to Hart
1979as Anita Boyer
1979as Anita Boyer
Coward of the County
1981as Emma Spencer
1981as Emma Spencer
Indecent Proposal
1993as David's Mother
1993as David's Mother
Let's Scare Jessica to Death
1971as Emily
1971as Emily
Heart of a Champion: The Ray Mancini Story
1985as Ellen Mancini
1985as Ellen Mancini
The Adventures of Buckaroo Banzai Across the 8th Dimension
1984as Senator Cunningham
1984as Senator Cunningham
A Sensitive, Passionate Man
1977as Pat Morris
1977as Pat Morris