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person_profile-Michael O'Neill

Michael O'Neill Age: 78

Actor | Producer

Date of Birth:

May 29, 1947

Country of birth:

USA

Biography of

Michael O'Neill

    ​From Wikipedia, the free encyclopedia.

    Michael O'Neill (born May 29, 1951) is an American actor. With a career stretching through three decades, he usually portrays senior law enforcement or military officers. He is perhaps best known for his role as Special agent Ron Butterfield, the head of President Josiah Bartlet's Secret Service detail, on The West Wing. He played CTU Administrative Director Richard Walsh in the first two episodes of 24. He played Sgt. Maj. Ron Cheals in the CBS action-drama series The Unit. He starred in the Season Six 2 part Finale of Grey's Anatomy as the broken widower who holds the hospital hostage with a 9mm while pursuing the doctors responsible for unplugging his wife. His most notable film performances occur in Seabiscuit, Secondhand Lions, Transformers, Dancer, Texas Pop 81, Traffic, Sea of Love, A Quiet Little Marriage, Nothing But the Truth, and Green Zone. O'Neill graduated from Auburn University in 1974. After attending Auburn he spent time under the tutelage of actor Will Geer and his daughter, Ellen, at Theatricum Botanicum in Los Angeles before moving to New York to pursue his career there.

Photos of

Michael O'Neill

Photos ( 1 Photos

Filmography of

Michael O'Neill

Found 38 Movies in total

Air

Joe Dean ( Actor )

... 2023

The Stand at Paxton County

Dell Connelly ( Actor )

... 2020

Clemency

Chaplain David Kendricks ( Actor )

... 2019

Indivisible

Chaplain Rogers ( Actor )

... 2018

Danger One

Beckwith ( Actor )

... 2018

The Grim Sleeper

Detective Simms ( Actor )

... 2014

Dallas Buyers Club

Richard Barkley ( Actor )

... 2013

J. Edgar

Senator McKellar ( Actor )

... 2011

Green Zone

Colonel Bethel ( Actor )

... 2010

Nothing But the Truth

CIA Director ( Actor )

... 2008

... 2008

Crazy

Ralph Christianson ( Actor )

... 2008

Transformers

Tom Banacheck ( Actor )

... 2007

Around the Bend

Cowboy ( Actor )

... 2004

American Crime

Sheriff Smyth ( Actor )

... 2004

Secondhand Lions

Ralph ( Actor )

... 2003

Seabiscuit

Mr. Pollard ( Actor )

... 2003

Dreamcatcher

General Matheson ( Actor )

... 2003

Traffic

Lawyer Rodman ( Actor )

... 2000

The Legend of Bagger Vance

O.B. Keeler ( Actor )

... 2000

ATF

Asst. A.T.F. Director Ben Walker ( Actor )

... 1999

The Mod Squad

Greene ( Actor )

... 1999

Dancer, Texas Pop. 81

Mr. Lusk ( Actor )

... 1998

... 1998

Standoff

Cult Leader (Voice) ( Actor )

... 1998

The Sunchaser

Agent Moreland ( Actor )

... 1996

Bushwhacked

Jon Jordan ( Actor )

... 1995

Awake to Danger

Detective Brickman ( Actor )

... 1995

Beyond Betrayal

Ray Pasquerello ( Actor )

... 1994

Blind Justice

Spencer Heymen ( Actor )

... 1994

... 1993

For Their Own Good

Clark Thompson ( Actor )

... 1993

Lorenzo's Oil

School Psychologist ( Actor )

... 1992

Jennifer Eight

Serato ( Actor )

... 1992

... 1992

An Unremarkable Life

Michael ( Actor )

... 1989

Sea of Love

Raymond Brown ( Actor )

... 1989

Ghost Story

Churchill ( Actor )

... 1981