Maria O'Brien

Known for: Acting

Born: August 13, 1950 in Los Angeles, California, USA - Died: February 23, 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

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Maria O'Brien

Known for

Smile

Howard

PSI Factor

In a Stranger's Hand

Your Mother Wears Combat Boots

In the Best Interest of the Child

In Sickness and in Health

Protocol

Shell Game

Promised a Miracle

The Choirboys

Good Luck

Dead on Arrival

The Incredible Shrinking Woman

American Raspberry

Beyond Belief: Fact or Fiction

CHiPs

The Love Boat

Murder, She Wrote

Suddenly Susan

Magnum, P.I.

Matlock

For the People

Jack & Jill