Mariclare Costello

Mariclare Costello

Known for
Acting
Born
February 6, 1936
Died
April 17, 2026 (aged 90)
Birthplace
Peoria, Illinois, USA

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.

Known For

Filmography

2000
Shadow of the Blair Witch poster

Shadow of the Blair Witch

Movie · as Kathy Patterson

1994
Chicago Hope poster

Chicago Hope

TV · as Mother Mary Catherine · 1 ep

1993
Indecent Proposal poster

Indecent Proposal

Movie · as David's Mother

1990
Appearances poster

Appearances

Movie · as Rose

1990
She Said No poster

She Said No

Movie · as Susan Finn

1987
American Harvest poster

American Harvest

Movie · as Mary Alice Duncan

1985
Heart of a Champion: The Ray Mancini Story poster

Heart of a Champion: The Ray Mancini Story

Movie · as Ellen Mancini

1984
The Adventures of Buckaroo Banzai Across the 8th Dimension poster

The Adventures of Buckaroo Banzai Across the 8th Dimension

Movie · as Senator Cunningham

1984
Victims for Victims: The Theresa Saldana Story poster

Victims for Victims: The Theresa Saldana Story

Movie · as Jane Bladow

1984
Murder, She Wrote poster

Murder, She Wrote

TV · as Cassie Latham Burns · 1 ep

1983
Nightmares poster

Nightmares

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

1982
Skeezer poster

Skeezer

Movie · as Barbara Thompson

1981
Coward of the County poster

Coward of the County

Movie · as Emma Spencer

1980
Ordinary People poster

Ordinary People

Movie · as Audrey

1980
The Boy Who Drank Too Much poster

The Boy Who Drank Too Much

Movie · as Louise Carpenter

1980
All God's Children poster

All God's Children

Movie · as Winnie Naponic

1979
Hart to Hart poster

Hart to Hart

TV · as Anita Boyer · 1 ep

1977
A Sensitive, Passionate Man poster

A Sensitive, Passionate Man

Movie · as Pat Morris

1977
The Fitzpatricks poster

The Fitzpatricks

TV · as Maggie Fitzpatrick · 13 eps

1977
Lou Grant poster

Lou Grant

TV · as Louise Larsen · 1 ep

1977
The Incredible Hulk poster

The Incredible Hulk

TV · as Kay Wallace · 1 ep

1976
Territorial Men poster

Territorial Men

Movie · as Julia Baker

1976
Raid on Entebbe poster

Raid on Entebbe

Movie · as Gabrielle Krieger

1975
Conspiracy of Terror poster

Conspiracy of Terror

Movie · as Mrs. Warnall

1974
The Execution of Private Slovik poster

The Execution of Private Slovik

Movie · as Antoinette Slovik

1974
The Gun poster

The Gun

Movie · as Beryl Strauss

1974
After the Fall poster

After the Fall

Movie · as Louise

1973
Kojak poster

Kojak

TV · as Diane Gordon · 1 ep

1972
Going Where I've Never Been: The Photography of Diane Arbus poster

Going Where I've Never Been: The Photography of Diane Arbus

Movie · as Herself - Narrator

1972
The Waltons poster

The Waltons

TV · as Mrs. Rosemary Fordwick, Miss Rosemary Hunter, Mrs. Rosemary Fordwick (archive footage) · 4 eps

1971
Let's Scare Jessica to Death poster

Let's Scare Jessica to Death

Movie · as Emily

1970
Pound poster

Pound

Movie · as Honky Killer's Wife