Mariclare Costello
ActingAbout 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.
Mariclare Costello Movies & Career Overview
The filmography of Mariclare Costello reflects a career marked by diverse experimentation. Across 24 major appearances, the actor has built a reputation through performances in multiple genres and storytelling styles.
Dominant Genre
A large portion of Mariclare Costello's work falls within the Drama genre, where audiences tend to respond most strongly to their on-screen presence.
Success Ratio
Approximately 50% of Mariclare Costello's films maintain ratings above 6.5, indicating a consistent level of audience approval.
One of the most highly rated entries in their career remains Appearances, which stands out as a key performance.
Best Mariclare Costello Movies Ranked
Must-watch hits from Mariclare Costello's career based on audience ratings.
Full Filmography
Every movie Mariclare Costello has appeared in, with audience ratings and verdicts.
Mariclare Costello - Frequently Asked Questions
What is the best movie of Mariclare Costello?
According to audience ratings, the best movie starring Mariclare Costello is "Appearances" with a rating of 10.0/10.
How many movies has Mariclare Costello acted in?
Mariclare Costello has been featured in at least 24 major films throughout their career.
What are some other popular movies by Mariclare Costello?
Other notable films include "Skeezer", "American Harvest", and "The Gun".