
Mariclare Costello
Known for Acting · 32 credits
- Born
- 1936-02-06
- Died
- 2026-04-17
- Place of birth
- Peoria, Illinois, USA
- 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.
Known For
TV Shows (8)

Murder, She Wrote
1984
as Cassie Latham Burns

Chicago Hope
1994
as Mother Mary Catherine

The Waltons
1972
as Mrs. Rosemary Fordwick / Miss Rosemary Hunter / Mrs. Rosemary Fordwick (archive footage)

Hart to Hart
1979
as Anita Boyer

The Incredible Hulk
1977
as Kay Wallace

Lou Grant
1977
as Louise Larsen

Kojak
1973
as Diane Gordon

The Fitzpatricks
1977
as Maggie Fitzpatrick
Movies (24)

Indecent Proposal
1993
as David's Mother

The Adventures of Buckaroo Banzai Across the 8th Dimension
1984
as Senator Cunningham

Ordinary People
1980
as Audrey

Raid on Entebbe
1976
as Gabrielle Krieger

Nightmares
1983
as Adele Cooney (segment "The Bishop of Battle")

Skeezer
1982
as Barbara Thompson

The Execution of Private Slovik
1974
as Antoinette Slovik

American Harvest
1987
as Mary Alice Duncan

Let's Scare Jessica to Death
1971
as Emily

All God's Children
1980
as Winnie Naponic

Heart of a Champion: The Ray Mancini Story
1985
as Ellen Mancini

Coward of the County
1981
as Emma Spencer

Victims for Victims: The Theresa Saldana Story
1984
as Jane Bladow

Appearances
1990
as Rose

The Boy Who Drank Too Much
1980
as Louise Carpenter

Pound
1970
as Honky Killer's Wife

After the Fall
1974
as Louise

A Sensitive, Passionate Man
1977
as Pat Morris

She Said No
1990
as Susan Finn

The Gun
1974
as Beryl Strauss

Territorial Men
1976
as Julia Baker

Conspiracy of Terror
1975
as Mrs. Warnall

Shadow of the Blair Witch
2000
as Kathy Patterson

Going Where I've Never Been: The Photography of Diane Arbus
1972
as Herself - Narrator
About Mariclare Costello
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. With 32 credits spanning from 1970 to 2000, Mariclare Costello has appeared in 24 films and 8 TV shows.
Fans searching for Mariclare Costello movies, Mariclare Costello filmography, or the latest projects starring Mariclare Costello can stream many of these titles on CineFlixo, free and in HD, with no subscription required.
Most Popular Mariclare Costello Movies
- Indecent Proposal (1993) — as David's Mother
- The Adventures of Buckaroo Banzai Across the 8th Dimension (1984) — as Senator Cunningham
- Ordinary People (1980) — as Audrey
- Raid on Entebbe (1976) — as Gabrielle Krieger
- Nightmares (1983) — as Adele Cooney (segment "The Bishop of Battle")
Where to Watch Mariclare Costello Films
Most Mariclare Costello movies and series are available to stream on CineFlixo in full HD, completely free and without signup. Browse the complete filmography above to jump directly to any title. For more films and the latest web series featuring Mariclare Costello, check our movies catalogue and browse page.