Mariclare Costello

Mariclare Costello

Known for

Acting

Born

February 6, 1936

Birthplace

Peoria, Illinois, USA

Died

April 17, 2026 (aged 90)

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.

Best known work

Indecent Proposal
Indecent Proposal
1993
Ordinary People
Ordinary People
1980
The Adventures of Buckaroo Banzai Across the 8th Dimension
The Adventures of Buckaroo Banzai Across the 8th Dimension
1984
The Incredible Hulk
The Incredible Hulk
1977
Murder, She Wrote
Murder, She Wrote
1984
Let's Scare Jessica to Death
Let's Scare Jessica to Death
1971
Kojak
Kojak
1973
Hart to Hart
Hart to Hart
1979
The Waltons
The Waltons
1972
Nightmares
Nightmares
1983

Filmography

  1. 2000

    Shadow of the Blair Witch

    as Kathy Patterson

  2. 1994

    Chicago HopeTV

    as Mother Mary Catherine (1 episode)

  3. 1993

    Indecent Proposal

    as David's Mother

  4. 1990

    She Said No

    as Susan Finn

  5. 1990

    Appearances

    as Rose

  6. 1987

    American Harvest

    as Mary Alice Duncan

  7. 1985

    Heart of a Champion: The Ray Mancini Story

    as Ellen Mancini

  8. 1984

    Victims for Victims: The Theresa Saldana Story

    as Jane Bladow

  9. 1984

    Murder, She WroteTV

    as Cassie Latham Burns (1 episode)

  10. 1984

    The Adventures of Buckaroo Banzai Across the 8th Dimension

    as Senator Cunningham

  11. 1983

    Nightmares

    as Adele Cooney (segment "The Bishop of Battle")

  12. 1982

    Skeezer

    as Barbara Thompson

  13. 1981

    Coward of the County

    as Emma Spencer

  14. 1980

    Ordinary People

    as Audrey

  15. 1980

    All God's Children

    as Winnie Naponic

  16. 1980

    The Boy Who Drank Too Much

    as Louise Carpenter

  17. 1979

    Hart to HartTV

    as Anita Boyer (1 episode)

  18. 1977

    The Incredible HulkTV

    as Kay Wallace (1 episode)

  19. 1977

    Lou GrantTV

    as Louise Larsen (1 episode)

  20. 1977

    The FitzpatricksTV

    as Maggie Fitzpatrick (13 episodes)

  21. 1977

    A Sensitive, Passionate Man

    as Pat Morris

  22. 1976

    Raid on Entebbe

    as Gabrielle Krieger

  23. 1976

    Territorial Men

    as Julia Baker

  24. 1975

    Conspiracy of Terror

    as Mrs. Warnall

  25. 1974

    After the Fall

    as Louise

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