Maria O’Brien, a veteran television actress and esteemed acting coach, passed away on 24 February at the age of 75. The news of her death was reported by outlets such as Deadline and The Hollywood Reporter, although the cause has not been disclosed. Her family, who hold notable connections within the entertainment industry, mourns her loss during this difficult time.
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Born to celebrated actors Edmond O’Brien and Olga San Juan, Maria O’Brien was immersed in the world of acting from a young age. Her father, an Oscar-winning performer, passed away in 1985, while her mother, a musical comedy star, departed in 2009. O’Brien’s lineage set the stage for what would become a noteworthy career in film and television, enriching the arts through her talent and dedication.

O’Brien made her acting debut in 1963 with an appearance on the television series Sam Benedict. Over the next three decades, she amassed a diverse array of credits, appearing in shows such as Viva Valdez in 1976, The Life and Times of Eddie Roberts in 1980, Quincy, M.E. from 1980 to 1982, and the beloved legal drama Matlock in 1988. Her experience spanned various roles, showcasing her versatility as an actress.

In addition to her television work, Maria O’Brien also featured in a selection of films, including Shell Game (1975), Choirboys (1977), and The Incredible Shrinking Woman (1980). Her role in Protocol (1984), where she starred alongside prominent figures like Goldie Hawn, Jean Smart, and Richard Romanus, further solidified her status in the industry. Her performances left an indelible mark on audiences and fellow actors alike.
Later in her career, O’Brien transitioned to behind-the-scenes work and became an influential acting coach. She contributed her expertise to popular soap operas such as Sunset Beach and Passions. Notably, she dedicated over 15 years of her career to coaching actors on the long-running series Days of Our Lives, a position she held until her retirement in 2022.
Maria O’Brien was not only known for her acting prowess but also for her advocacy regarding Alzheimer’s Disease, a condition that deeply affected her family. In 1983, she took a courageous step by testifying before Congress about the impacts of Alzheimer’s after her father was diagnosed with the illness. Her efforts helped raise awareness about the disease, making her a respected voice within the community.
Tragically, her passing follows the recent death of her brother, Brendan O’Brien, a well-known voice actor, who also passed away in the year 2023. The loss of two family members within a short period is surely a heavy burden for those left behind.
Maria O’Brien is survived by her three children: Thomas, Danica, and Sean Anderson, as well as her sister, Bridget O’Brien Adelman. As the family navigates this challenging time, they remember a mother and sister who contributed significantly to the arts and gained admiration from friends, colleagues, and fans.
Her legacy will undoubtedly endure through the many lives she touched, both on and off-screen. The acting community has lost a talented individual whose impact can still be felt today, as her contributions to film and television continue to resonate with audiences across generations.
