Mariclare Costello, who played the devoted schoolteacher Rosemary Hunter on The Waltons, a free-spirited ...

Mariclare Costello, a prolific actress whose credits include “The Waltons” and “Let’s Scare Jessica to Death,” has died.

Mariclare Costello, best known for playing Rosemary Hunter on the long-running television series “The Waltons,” has died. She was 90. Costello died on April 17 in Brooklyn, her family said in her ...

In 1971, viewers were first introduced to the Walton family in the TV movie The Homecoming: A Christmas Story. The movie, based on the book Spencer's Mountain by Earl Hamner Jr., featured most of the ...

Mariclare Costello, best known for playing schoolteacher Rosemary Hunter on "The Waltons," has died at 90. Mariclare was also ...

Actress Mariclare Costello, best known for her role as schoolteacher Rosemary Hunter on The Waltons, has died. She was 90.