Updated Feb 20, 2026
Details
Known For
Actor
Occupations
Stage actor, Television actor, Film actor, Actor
Birthday
(Thursday)
Nationality
Citizenship
United States
Languages
English
Spouse
Allan Arbus (1977-2013)
Zodiac Sign
♒ Aquarius
Chinese Zodiac
鼠 Rat
Popularity
Tier C -- 4,344 Wikipedia views/month
DROPTHE_ GOSSIP
Mariclare Costello is known for acting.
Born in Peoria, Illinois, USA (age 90).
Mariclare Costello has 4 credits in our database.
DROPTHE GOOD_
8
Recognized
out of 100
Most people on Earth score 0. Only those with measurable positive impact appear on this scale.
Human Impact
0
Innovation
0
Giving
0
Sustainability
55
Cultural Uplift
26
Public Vote
★
★
★
★
★
Be the first to vote
Filmography (4)
Biography
Mariclare Costello is a retired American television, stage, and movie actress. She is 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.
Connections (1)
Related People
Frequently Asked Questions
How old is Mariclare Costello?
Mariclare Costello is 90 years old, born on .
Where was Mariclare Costello born?
Mariclare Costello was born in Peoria, Illinois, USA.
What movies or shows has Mariclare Costello been in?
Mariclare Costello has 4 credits in our database. Notable titles include Indecent Proposal (1993), Raid on Entebbe (1976), The Execution of Private Slovik (1974), Let's Scare Jessica to Death (1971).
What is Mariclare Costello known for?
Mariclare Costello is primarily known as an actor. Mariclare Costello is a retired American television, stage, and movie actress. She is a lifetime member of The Actors Studio. Costello's most notable role was…
Where can I find more information about Mariclare Costello?
You can find more about Mariclare Costello on IMDB, TMDB, Wikidata. Their full profile and filmography is available on this page.
