Maria O'Brien
Acting
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

1984
Murder, She Wrote
1984 · tv

1977
The Love Boat
1977 · tv

1980
Magnum, P.I.
1980 · tv

1986
Matlock
1986 · tv

1997
Beyond Belief: Fact or Fiction
1997 · tv

1977
CHiPs
1977 · tv

1996
Suddenly Susan
1996 · tv

1975
Smile
1975 · movie

1981
The Incredible Shrinking Woman
1981 · movie

2018
Howard
2018 · movie

1977
The Choirboys
1977 · movie

1997
Good Luck
1997 · movie

1984
Protocol
1984 · movie

1990
In the Best Interest of the Child
1990 · movie

2018
Dead on Arrival
2018 · movie

1991
In a Stranger's Hand
1991 · movie

1980
PSI Factor
1980 · movie

1989
Your Mother Wears Combat Boots
1989 · movie

1992
In Sickness and in Health
1992 · movie

1975
Shell Game
1975 · movie

1988
Promised a Miracle
1988 · movie