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Maria O'Brien

Known for: Acting

Born: August 14, 1950

Died: February 24, 2026

Maria O'Brien (August 14, 1950 – February 24, 2026) was an American actress and acting coach. She was the daughter of actors Edmond O'Brien and Olga San Juan, and sister of voice actor Brendan O'Brien. She was best known as a character actress, but she also had a recurring role on a few television series, such as Ave 43 and The Life and Times of Eddie Roberts. She was also an acting coach on soap operas, such as Days of Our Lives, Sunset Beach, and Passions.

Known for

Shell Game
Shell Game
1975
Good Luck
Good Luck
1997
Your Mother Wears Combat Boots
Your Mother Wears Combat Boots
1989
Smile
Smile
1975
PSI Factor
PSI Factor
1980
In a Stranger's Hand
In a Stranger's Hand
1991
In Sickness and in Health
In Sickness and in Health
1992
Dead on Arrival
Dead on Arrival
2018
Protocol
Protocol
1984
Promised a Miracle
Promised a Miracle
1988
In the Best Interest of the Child
In the Best Interest of the Child
1990
Beyond Belief: Fact or Fiction
Beyond Belief: Fact or Fiction
1997
CHiPs
CHiPs
1977
The Love Boat
The Love Boat
1977
Murder, She Wrote
Murder, She Wrote
1984
Suddenly Susan
Suddenly Susan
1996
Magnum, P.I.
Magnum, P.I.
1980
Matlock
Matlock
1986
For the People
2002
Jack & Jill
Jack & Jill
1999
The Incredible Shrinking Woman
The Incredible Shrinking Woman
1981
The Choirboys
The Choirboys
1977
Howard
Howard
2018