Acting

Mariclare Costello

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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…

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Horror filmography

Shadow of the Blair Witch 2000

as Kathy Patterson

Nightmares 1983

as Adele Cooney (segment "The Bishop of Battle")

Conspiracy of Terror 1975

as Mrs. Warnall

Let's Scare Jessica to Death 1971

as Emily

Mariclare Costello

Horror filmography

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