Mariclare Costello

Mariclare Costello (born February 3, 1936 Peoria, Illinois, USA) is an American television, stage, and movie actress. She is a lifetime member of The Actors Studio. Costello's most notable role was 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.