Actor
Maria O'Brien
Born 1950 · Los Angeles, California, USA
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.
Acting

Murder, She Wrote
Lt. Abbe Esposito · 1984

Magnum, P.I.
Club Manager Applicant · 1980

Matlock
Juanita Martinez · 1986

CHiPs
Patti Poncherello · 1977

The Love Boat
Rita Almerez · 1977

Beyond Belief: Fact or Fiction
Paranormal Investigator (segment "The Chess Game") · 1997

Howard
Maria (archive footage) · 2018

The Incredible Shrinking Woman
Neighbor · 1981

Protocol
Donna · 1984
For the People
Judge · 2002

Smile
Maria · 1975

Suddenly Susan
Maria · 1996

The Choirboys
Carrier 2's Wife · 1977

Your Mother Wears Combat Boots
Carla · 1989

In a Stranger's Hand
Paula · 1991

Dead on Arrival
Neighbor · 2018

Good Luck
Peggy · 1997

Shell Game
Lola Ramirez · 1975

In Sickness and in Health
Nancy · 1992

In the Best Interest of the Child
Carla · 1990