Actor profile

Mariclare Costello

6th February 1936 Peoria, Illinois, USA Acting

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.

24 Movies 10 TV Shows 34 Credits

Filmography

Movies & TV Shows

Shadow of the Blair Witch poster

Shadow of the Blair Witch 22nd October 2000 as Kathy Patterson

Indecent Proposal poster

Indecent Proposal 7th April 1993 as David's Mother

She Said No poster

She Said No 23rd September 1990 as Susan Finn

Appearances poster

Appearances 17th June 1990 as Rose

American Harvest poster

American Harvest 16th January 1987 as Mary Alice Duncan

Heart of a Champion: The Ray Mancini Story poster

Heart of a Champion: The Ray Mancini Story 1st May 1985 as Ellen Mancini

Victims for Victims: The Theresa Saldana Story poster

Victims for Victims: The Theresa Saldana Story 12th November 1984 as Jane Bladow

The Adventures of Buckaroo Banzai Across the 8th Dimension poster

The Adventures of Buckaroo Banzai Across the 8th Dimension 10th August 1984 as Senator Cunningham

Nightmares poster

Nightmares 2nd September 1983 as Adele Cooney (segment "The Bishop of Battle")

Skeezer poster

Skeezer 27th December 1982 as Barbara Thompson

Coward of the County poster

Coward of the County 7th October 1981 as Emma Spencer

Ordinary People poster

Ordinary People 19th September 1980 as Audrey

All God's Children poster

All God's Children 28th April 1980 as Winnie Naponic

The Boy Who Drank Too Much poster

The Boy Who Drank Too Much 6th February 1980 as Louise Carpenter

A Sensitive, Passionate Man poster

A Sensitive, Passionate Man 6th June 1977 as Pat Morris

Raid on Entebbe poster

Raid on Entebbe 26th December 1976 as Gabrielle Krieger

Territorial Men poster

Territorial Men 30th July 1976 as Julia Baker

Conspiracy of Terror poster

Conspiracy of Terror 10th April 1975 as Mrs. Warnall

After the Fall poster

After the Fall 10th December 1974 as Louise

The Gun poster

The Gun 13th November 1974 as Beryl Strauss

The Execution of Private Slovik poster

The Execution of Private Slovik 13th March 1974 as Antoinette Slovik

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

Going Where I've Never Been: The Photography of Diane Arbus 21st November 1972 as Herself - Narrator

Let's Scare Jessica to Death poster

Let's Scare Jessica to Death 27th August 1971 as Emily

Pound poster

Pound 8th August 1970 as Honky Killer's Wife

Chicago Hope poster

Chicago Hope 18th September 1994 as Mother Mary Catherine

Murder, She Wrote poster

Murder, She Wrote 30th September 1984 as Cassie Latham Burns

Hart to Hart poster

Hart to Hart 22nd September 1979 as Anita Boyer

The Incredible Hulk poster

The Incredible Hulk 4th November 1977 as Kay Wallace

Lou Grant poster

Lou Grant 20th September 1977 as Louise Larsen

The Fitzpatricks poster

The Fitzpatricks 5th September 1977 as Maggie Fitzpatrick

Kojak poster

Kojak 24th October 1973 as Diane Gordon

The Waltons poster

The Waltons 14th September 1972 as Mrs. Rosemary Fordwick

The Waltons poster

The Waltons 14th September 1972 as Miss Rosemary Hunter

The Waltons poster

The Waltons 14th September 1972 as Mrs. Rosemary Fordwick (archive footage)