
ACTOR
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.
Movies & TV Shows

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

Let's Scare Jessica to Death
⭐ 6.2

Territorial Men
⭐ N/A

Ordinary People
⭐ 7.5

The Execution of Private Slovik
⭐ 7.4

The Boy Who Drank Too Much
⭐ 4.7

Coward of the County
⭐ 6.5

Heart of a Champion: The Ray Mancini Story
⭐ 6.0

The Gun
⭐ 8.7

Appearances
⭐ 10.0

Victims for Victims: The Theresa Saldana Story
⭐ 6.7

Skeezer
⭐ 10.0

A Sensitive, Passionate Man
⭐ 5.5

She Said No
⭐ 7.7

Shadow of the Blair Witch
⭐ 5.5

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

Pound
⭐ 4.8

All God's Children
⭐ 6.5

After the Fall
⭐ 8.0

Nightmares
⭐ 5.9

Indecent Proposal
⭐ 6.4

American Harvest
⭐ 9.0

Raid on Entebbe
⭐ 6.0

Conspiracy of Terror
⭐ 7.0

Chicago Hope
⭐ 7.2

The Fitzpatricks
⭐ 7.5

Lou Grant
⭐ 7.4

Kojak
⭐ 7.3

Hart to Hart
⭐ 6.9

The Incredible Hulk
⭐ 7.2

Murder, She Wrote
⭐ 7.5

The Waltons
⭐ 7.1

The Waltons
⭐ 7.1

The Waltons
⭐ 7.1