Mariclare Costello

Acting

Mariclare Costello

Born — Died

1936-02-06 — 2026-04-17

Place of birth

Peoria, Illinois, USA

Known for

Acting

Credits

34 titles

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

Film credits

1980s · 10 titles

Ordinary People poster
7.4

Beth, Calvin, and their son Conrad are living in the aftermath of the death of the other son. Conrad is overcome by grief and misplaced guilt to the extent of a suicide attempt. He is in therapy. Beth had always preferred his brother and is having difficulty being supportive to Conrad. Calvin is trapped between the two trying to hold the family together.

Ordinary People

1980

Nightmares poster
5.9

A collection of short stories. In one a woman who leaves her house late at night to drive to the store while a killer is loose encounters some problems. In the second an arcade whiz kid's obsession with a game leads to deadly consequences. In the third a small town priest loses his faith and decides to leave town, but in the desert is stalked by a mysterious black pick-up truck. In the final story, a family's problem with a rat is larger than they think.

Nightmares

1983

The Adventures of Buckaroo Banzai Across the 8th Dimension poster
6.0

Adventurer/surgeon/rock musician Buckaroo Banzai and his band of men, the Hong Kong Cavaliers, take on evil alien invaders from the 8th dimension.

The Adventures of Buckaroo Banzai Across the 8th Dimension

1984

The Boy Who Drank Too Much poster
4.7

A high school athlete is well on the road to becoming an alcoholic like his ex-hockey pro father until his teammate and best friend commits himself to saving him from his self-destructive habit.

The Boy Who Drank Too Much

1980

American Harvest poster
9.0

American Harvest is set in the heartland of Kansas. Two proud, stubborn families have not spoken to one another because of an incident in the distant past. Wayne Rogers, the patriarch of one of the families, is in danger of losing his wheat farm. He knows that his land will be saved if he patches things up with rival farmer Earl Holliman, but such a reconciliation is out of the question.

American Harvest

1987

Coward of the County poster
6.5

A lifelong yellow-belly who made a deathbed promise to his father to be a pacifist seeks bloody revenge on the men who gang-raped his wife.

Coward of the County

1981

All God's Children poster
6.5

Big city judge Parke Denison is involved in a forced busing dispute at the climax of his long career. The friendship between two families -- one white, one black -- and their sons, who are buddies, provides the microcosm of this major social issue that has been argued for several decades.

All God's Children

1980

Heart of a Champion: The Ray Mancini Story poster
6.0

The film details the life of Ray Mancini, a World Boxing Association world lightweight champion boxer from 1982 to 1984, Hollywood actor and a member of the International Boxing Hall of Fame.

Heart of a Champion: The Ray Mancini Story

1985

Victims for Victims: The Theresa Saldana Story poster
6.7

Before stalking was a well-known crime in North America, there was Theresa Saldana's story. A drifter from the U.K., Arthur Jackson, flies to the U.S. to seek Saldana out. His twisted mission: Jackson planned to murder Saldana, then request the death sentence for himself so he "could join her in paradise." The psychopathic Jackson confronts Saldana on the street in front of her home and stabs her violently several times. No one comes to Theresa's aid except water deliveryman Jeff Fenn, who overpowers Jackson and gets the knife away from him. Jackson is arrested & charged with attempted murder...and Theresa Saldana tells her story of terror and survival as herself in this TV movie.

Victims for Victims: The Theresa Saldana Story

1984

Skeezer poster
10.0

A nurse-therapist uses her dog to reach emotionally disturbed children where she works.

Skeezer

1982

1970s · 10 titles

Let's Scare Jessica to Death poster
6.2

Newly released from a mental ward, Jessica hopes to return to life the way it was before her nervous breakdown. But when Jessica moves to a country house with her husband and a close friend, she finds a mysterious girl living in there. Jessica's terror and paranoia resurface as evil forces surround her.

Let's Scare Jessica to Death

1971

The Execution of Private Slovik poster
7.4

The story of Eddie Slovik, who was executed by the Army in 1945, the only American soldier to be executed for desertion since the Civil War.

The Execution of Private Slovik

1974

Raid on Entebbe poster
6.0

Based on a true operation by Israeli commandos. An Air France flight is hijacked by the Popular Front for the Liberation of Palestine. The airplane landed in Uganda. The terrorists released some passengers, keeping 94 Jews and 12 air crew hostage. The Israeli government would not negotiate. A rescue plan was devised, and less than 100 commandos were flown across Africa to rescue the passengers in surprisingly successful operation.

Raid on Entebbe

1976

Conspiracy of Terror poster
7.0

A husband-and-wife detective team investigate the existence of lethal Satanic cults , while the husband battles with his Orthodox Jewish parents who haven't forgiven him for marrying a Gentile woman.

Conspiracy of Terror

1975

A Sensitive, Passionate Man poster
5.5

The marriage of a wealthy, outwardly happy couple is threatened by the husband's alcoholism.

A Sensitive, Passionate Man

1977

The Gun poster
8.7

The odyssey of an American handgun and the dramatic way it reshapes the lives of its various owners.

The Gun

1974

After the Fall poster
8.0

Adaptation of Arthur Miller's semi-autobiographical play about Quentin, a Jewish intellectual from New York who must reexamine his life and his troubled relationship with Holga.

After the Fall

1974

Pound poster
4.8

In a pound, 18 dogs wait to be adopted.

Pound

1970

Territorial Men poster
NR

The story of Sara Yarnell, a schoolteacher who moves from Philadelphia to the Western frontier to start a new life. She becomes the only teacher in a one-room schoolhouse in Independence, Colorado.

Territorial Men

1976

Going Where I've Never Been: The Photography of Diane Arbus poster
6.0

The work of photographer Diane Arbus as explained by her daughter, friends, critics, and in her own words as recorded in her journals. Illustrated with many of her photographs. Mary Clare Costello, narrator Themes: Arbus' quirky go-it-alone approach. Her attraction to the bizarre, people on the fringes of society: sexual deviants, odd types, the extremes, styles in questionable taste, poses and situations that inspire irony or wonder. Where most people would look away she photographed.

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

1972

Series credits

Murder, She Wrote poster
7.5

An unassuming mystery writer turned sleuth uses her professional insight to help solve real-life homicide cases.

Murder, She Wrote

1984

Chicago Hope poster
7.2

Chicago Hope is an American medical drama television series, created by David E. Kelley. It ran on CBS from September 18, 1994, to May 4, 2000. The series is set in a fictional private charity hospital in Chicago, Illinois.

Chicago Hope

1994

The Waltons poster
7.1

The Waltons live their life in a rural Virginia community during the Great Depression and World War II.

The Waltons

1972

The Waltons poster
7.1

The Waltons live their life in a rural Virginia community during the Great Depression and World War II.

The Waltons

1972

The Waltons poster
7.1

The Waltons live their life in a rural Virginia community during the Great Depression and World War II.

The Waltons

1972

The Incredible Hulk poster
7.2

During an experiment gone bad, radiation turns a scientist into a raging green behemoth whenever he becomes agitated. Unable to control his transformations, David Banner searches for a cure as he crosses the country, fugitive-style, with a dogged tabloid reporter on his trail.

The Incredible Hulk

1977

Hart to Hart poster
6.9

Wealthy couple Jonathan and Jennifer Hart, a self-made millionaire and his journalist wife, moonlight as amateur detectives.

Hart to Hart

1979

Lou Grant poster
7.4

The trials of a former television station manager turned newspaper city editor, and his journalist staff.

Lou Grant

1977

Kojak poster
7.3

A bald, lollipop sucking police detective with a fiery righteous attitude battles crime in New York City.

Kojak

1973

The Fitzpatricks poster
7.5

The Fitzpatricks is an American drama series which ran on CBS during the 1977–78 season. The series aired from September 5th, 1977 to January 10th, 1978. This show lasted only thirteen episodes, and was cancelled in 1978.

The Fitzpatricks

1977