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Mariclare Costello Dead: ‘Waltons,' ‘Scare Jessica to Death' Actor Was 90

Mariclare Costello, a lifetime member of The Actors Studio who recurred as the schoolteacher Rosemary Hunter on The Waltons and played a hippie vampire in the cult horror film Let's Scare Jessica to ...
The Hollywood Reporter

Mariclare Costello, Actress in ‘The Waltons’ and ‘Let’s Scare Jessica to Death,’ Dies at 90

A lifetime member of The Actors Studio and an original player with the Lincoln Center Repertory, she also appeared on Broadway with Stacy Keach, Jimmy Stewart and Helen Hayes. By Mike Barnes Senior ...