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Mariclare Costello

Mariclare Costello

Acting

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

Murder, She Wrote
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
7.3

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
7.2

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

The Waltons

1972
The Incredible Hulk
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
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
7.3

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

Lou Grant

1977
Kojak
7.2

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

Kojak

1973
Indecent Proposal
6.4

John Gage offers a down-on-his-luck yuppie husband $1 million for the opportunity to spend the night with the man's wife.

Indecent Proposal

1993
The Adventures of Buckaroo Banzai Across the 8th Dimension
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 Fitzpatricks
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
Ordinary People
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
Raid on Entebbe
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
Skeezer
10.0

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

Skeezer

1982
Let's Scare Jessica to Death
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
Nightmares
5.7

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
Heart of a Champion: The Ray Mancini Story
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
The Execution of Private Slovik
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
Coward of the County
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
Appearances
10.0

A drama centering on the joys, conflicts, and crises on a middle-class family and on its ex-football star father's efforts to keep it on track and intact despite the death of a child and the strain between his wife and father.

Appearances

1990
American Harvest
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