Mariclare Costello, best known for playing schoolteacher Rosemary Hunter on “The Waltons,” has died at 90. Her family says she passed away April 17 in Brooklyn, closing out a long and impressive career that also includes the 1971 cult horror flick…
Mariclare Costello, best known for playing schoolteacher Rosemary Hunter on “The Waltons,” has died at 90. Her family says she passed away April 17 in Brooklyn, closing out a long and impressive career that also includes the 1971 cult horror flick…