Maria O’Brien, a versatile actress whose career spanned decades of film and television, and who later found fulfillment as a sought-after acting coach, died on February 24, 2026, at the age of 75. Her passing marks the end of an era for a performer who navigated a changing industry with grace and dedication, leaving a legacy that extends beyond her on-screen roles to the many actors she mentored. O’Brien’s work, from appearances in films like Protocol and Matlock to her 15-year tenure guiding talent on Days of Our Lives, resonated with audiences and colleagues alike.
Born in Los Angeles on August 14, 1950, O’Brien came from a deeply rooted Hollywood family. Her father was Academy Award-winning actor Edmond O’Brien, and her mother, Olga San Juan, was a celebrated musical comedy star. Following in their footsteps, O’Brien began her acting journey early, landing her first onscreen credit in 1963. This familial connection to the entertainment industry undoubtedly shaped her understanding of the craft and provided a foundation for her long and varied career. The influence of her parents is a testament to the enduring power of legacy in the world of performing arts.
Early Roles and a Prolific Career
O’Brien’s early filmography showcases her willingness to accept on diverse roles. She appeared in Smile (1975), Shell Game (1975), The Choirboys (1977), Prime Time (1977), PSI Factor (1980), and The Incredible Shrinking Woman (1980), demonstrating a range that would become a hallmark of her work. In 1984, she joined the cast of Protocol, a political thriller starring Goldie Hawn, Richard Romanus, and Jean Smart, further solidifying her presence in mainstream cinema. As reported by National Today, O’Brien consistently shared the screen with prominent actors throughout her career, including Melanie Griffith, Lily Tomlin, Angela Lansbury, and Tom Selleck.
From Guest Spots to Daytime Drama Coaching
Beyond her film work, O’Brien maintained a steady presence on television, accumulating a substantial list of guest appearances. She appeared in popular shows such as Murder, She Wrote, Magnum P.I., Good Morning, Miss Bliss, The Love Boat, L.A. Law, CHiPs, and Matlock. Her versatility extended to more contemporary series like Nash Bridges, Suddenly Susan, Jack & Jill, and For the People, as well as the soap-spoofing web series Ave 43. This breadth of experience highlights her adaptability and enduring appeal to casting directors.
In the late 1990s, O’Brien transitioned into a new phase of her career, leveraging her years of experience to guide others. She began working as an acting coach on daytime dramas, starting with Sunset Beach and Passions. This led to a particularly impactful 15-year position as an acting coach on Days of Our Lives, a role she held until her retirement in 2022. Her dedication to nurturing talent and refining performances made her a respected figure within the soap opera community.
A Voice for Alzheimer’s Awareness
O’Brien’s commitment extended beyond the entertainment industry. Her father, Edmond O’Brien, was one of the first public figures to be diagnosed with Alzheimer’s disease. In 1983, she bravely testified before Congress about the devastating impact of the disease, advocating for increased research funding. Her advocacy played a crucial role in securing government support for Alzheimer’s research, demonstrating her willingness to use her platform to address crucial social issues. National Today notes this was a deeply personal cause for O’Brien, driven by her firsthand experience with the disease’s effects.
Recognition and Legacy
O’Brien’s talent was as well recognized with a Drama-Logue Award in 1990 for her performance in Jean Genet’s The Maids at the Mark Taper Forum in Los Angeles. She was preceded in death by her brother, actor Brendan O’Brien, and is survived by her three children, Thomas Anderson, Danica Anderson, and Sean Anderson, as well as her sister, Bridget O’Brien Adelman.
Maria O’Brien will be remembered not only for her contributions to film and television, but also for her warmth, vivacity, and dedication to her craft. Her influence on the next generation of actors, particularly those who benefited from her coaching on Days of Our Lives, will continue to be felt for years to come. The entertainment industry has lost a talented and compassionate artist.
Details regarding a memorial service have not yet been announced. The family requests privacy during this difficult time. Further updates will be shared as they become available.
If you or someone you know is affected by Alzheimer’s disease, resources are available. The Alzheimer’s Association offers support, information, and advocacy: https://www.alz.org/
