Personal info
- Known for
- Acting
- Born
- 2/6/1936
- Birthplace
- Peoria, Illinois, USA
- Died
- 4/17/2026 (aged 90)
- Gender
- Female
- Also known as
- Mariclare Catherine Costello
Biography
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 role on The Waltons, she played matriarch Maggie Fitzpatrick on the short-lived drama show The Fitzpatricks.
12 titles
Indecent Proposal
1993
David's Mother
Ordinary People
1980
Audrey
The Adventures of Buckaroo Banzai Across the 8th Dimension
1984
Senator Cunningham
The Incredible Hulk
1977TV
Kay Wallace
Murder, She Wrote
1984TV
Cassie Latham Burns
Let's Scare Jessica to Death
1971
Emily
Kojak
1973TV
Diane Gordon
Hart to Hart
1979TV
Anita Boyer
The Waltons
1972TV
Mrs. Rosemary Fordwick, Miss Rosemary Hunter, Mrs. Rosemary Fordwick (archive footage)
Nightmares
1983
Adele Cooney (segment "The Bishop of Battle")
Chicago Hope
1994TV
Mother Mary Catherine
Raid on Entebbe
1976
Gabrielle Krieger
