‘Protocol’ & ‘Matlock’ Actress, ‘Days Of Our Lives’ Acting Coach Was 75

Maria O’Brien: A Life on Stage, Screen, and Championing Alzheimer’s Research

Maria O’Brien, a versatile actress and dedicated acting coach, passed away on March 4, 2026, at the age of 75. Her career spanned decades, encompassing roles in film, television, and a significant contribution to the world of daytime drama as a sought-after coach.

From Hollywood Royalty to Rising Star

Born August 14, 1950, O’Brien came from a celebrated acting lineage. She was the daughter of Academy Award-winner Edmund O’Brien and musical comedy star Olga San Juan. This upbringing undoubtedly fostered her passion for the performing arts.

O’Brien’s early film work included appearances in Smile (1975), Shell Game (1975), The Choirboys (1977), Prime Time (1977), PSI Factor (1980), and The Incredible Shrinking Woman (1980). She shared the screen with prominent actors like Melanie Griffith, Lily Tomlin, Angela Lansbury, and Tom Selleck throughout her career.

A Familiar Face on Television

Television audiences recognized O’Brien from numerous guest appearances. Her credits include Murder, She Wrote, Magnum P.I., Good Morning, Miss Bliss, The Love Boat, LA Law, CHiPs, Matlock, Nash Bridges, Suddenly Susan, Jack & Jill, and For the People. She also appeared in dozens of episodes of the web series Ave 43.

Mentoring the Next Generation

In the late 1990s, O’Brien transitioned into acting coaching, initially working on Sunset Beach and Passions. This led to a 15-year tenure as an acting coach on Days of Our Lives, a role she continued until her retirement in 2022. Her guidance helped shape the performances of countless actors in the daytime television world.

Advocacy and Recognition

Beyond her artistic pursuits, O’Brien was a passionate advocate for Alzheimer’s research. Her father’s diagnosis with the disease prompted her to testify before Congress in 1983, playing a crucial role in securing government funding for research into this devastating illness.

Her talent was also recognized with a Drama-Logue Award in 1990 for her performance in The Maids by Jean Genet at the Mark Taper Forum in Los Angeles.

Family and Legacy

Maria O’Brien was preceded in death by her brother, actor Brendan O’Brien. She is survived by her three children, Thomas Anderson, Danica Anderson, and Sean Anderson, and her sister Bridget O’Brien Adelman. She will be remembered for her vibrant personality, dedication to her craft, and commitment to helping others.

Frequently Asked Questions

What were some of Maria O’Brien’s most notable roles?

She appeared in films like Protocol and Matlock, and spent 15 years as an acting coach on Days of Our Lives.

What was Maria O’Brien’s connection to Alzheimer’s research?

Her father was diagnosed with Alzheimer’s, and she testified before Congress to secure funding for research.

Did Maria O’Brien receive any awards for her work?

Yes, she won a Drama-Logue Award in 1990 for her performance in The Maids.

Did you know? Maria O’Brien’s father, Edmund O’Brien, won an Academy Award for Best Supporting Actor for his role in The Killers (1946).

If you’re interested in learning more about the impact of Alzheimer’s disease, visit the Alzheimer’s Association website.

Share your favorite memories of Maria O’Brien in the comments below!

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