7.5
TV
Acting
Maria O'Brien
- Born
- Died
- (aged 75)
- Birthplace
- Los Angeles, California, USA
- Credits
- 24 titles
Biography
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.
Signature work
Known For
7.5
TV
7.3
TV
Magnum, P.I.
6.2
TV
The Love Boat
6.8
TV
CHiPs
7.0
TV
Matlock
5.4
Movie
The Incredible Shrinking Woman
5.5
Movie
Protocol
7.3
TV
Beyond Belief: Fact or Fiction
6.0
Movie
Smile
6.0
TV
Suddenly Susan
5.4
Movie
The Choirboys
4.3
Movie
Dead on Arrival
7.7
TV
Jack & Jill
4.9
Movie
Good Luck
5.6
Movie
American Raspberry
5.7
Movie
In a Stranger's Hand
6.0
Movie
Your Mother Wears Combat Boots
2.7
Movie
In the Best Interest of the Child
Acting credits 24
| Year | Title | Role |
|---|---|---|
| 2018 | Howard Film | Maria (archive footage) |
| 2018 | Dead on Arrival Film | Neighbor |
| 2002 | For the People TV | Judge (1 ep) |
| 1999 | Jack & Jill TV | Fortune Teller (1 ep) |
| 1997 | Beyond Belief: Fact or Fiction TV | Paranormal Investigator (segment "The Chess Game") (1 ep) |
| 1997 | Good Luck Film | Peggy |
| 1996 | Suddenly Susan TV | Maria (1 ep) |
| 1992 | In Sickness and in Health Film | Nancy |
| 1991 | In a Stranger's Hand Film | Paula |
| 1990 | In the Best Interest of the Child Film | Carla |
| 1989 | Your Mother Wears Combat Boots Film | Carla |
| 1988 | Promised a Miracle Film | |
| 1986 | Matlock TV | Juanita Martinez (2 ep) |
| 1984 | Protocol Film | Donna |
| 1984 | Murder, She Wrote TV | Lt. Abbe Esposito (1 ep) |
| 1981 | The Incredible Shrinking Woman Film | Neighbor |
| 1980 | Magnum, P.I. TV | Club Manager Applicant (1 ep) |
| 1980 | PSI Factor Film | |
| 1977 | The Choirboys Film | Carrier 2's Wife |
| 1977 | The Love Boat TV | Rita Almerez (1 ep) |
| 1977 | CHiPs TV | Patti Poncherello (1 ep) |
| 1977 | American Raspberry Film | Air Puerto Rico Stewardess |
| 1975 | Smile Film | Maria |
| 1975 | Shell Game Film | Lola Ramirez |