Michael O'Neill, Acting - KorPlix:Korean Person Archives

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Michael O'Neill
Acting

Michael O'Neill
Known For
Acting
Birthday
1947-05-29,Montgomery, Alabama, USA
Gender
Male
Biography
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.

Filmography

6.818

Transformers
2007-06-27

6.489

Green Zone
2010-03-11

5.6

Dreamcatcher
2003-03-21

The Gun in Betty Lou's Handbag

5.1

The Gun in Betty Lou's Handbag
1992-08-21

7.309

Air
2023-04-05

Around the Bend

5.9

Around the Bend
2004-10-08

5.2

Blind Justice
1994-06-25

A Quiet Little Marriage

4.5

A Quiet Little Marriage
2008-10-18

Dancer, Texas Pop. 81

7

Dancer, Texas Pop. 81
1998-05-01

War of the Worlds

4.4

War of the Worlds
2025-07-29

Dallas Buyers Club

7.919

Dallas Buyers Club
2013-11-01

For Their Own Good

6.2

For Their Own Good
1993-04-05

An Unremarkable Life

0

An Unremarkable Life
1989-10-12

5.612

Bride Hard
2025-06-19

5.374

Bushwhacked
1995-08-04

The Grim Sleeper

4.9

The Grim Sleeper
2014-03-15

Virtual Obsession

4.3

Virtual Obsession
1998-02-01

The Legend of Bagger Vance

6.591

The Legend of Bagger Vance
2000-11-02

7.079

Traffic
2000-12-27

Nothing But the Truth

6.951

Nothing But the Truth
2008-12-19

4.7

ATF
1999-09-06

5.5

Crazy
2008-03-02

Victim of Love: The Shannon Mohr Story

7.2

Victim of Love: The Shannon Mohr Story
1993-11-09

Secondhand Lions

7.191

Secondhand Lions
2003-09-19

6.8

Indivisible
2018-10-26

6.257

The Sunchaser
1996-05-29

6.1

Jennifer Eight
1992-11-06

5.943

Danger One
2018-09-14

6.031

Ghost Story
1981-12-18

6.602

Sea of Love
1989-09-15

6.313

Clemency
2019-12-27

7.1

Lorenzo's Oil
1992-12-30

Beyond Betrayal

6.3

Beyond Betrayal
1994-10-11

The Stand at Paxton County

5.9

The Stand at Paxton County
2020-05-02

6.229

J. Edgar
2011-11-09

3.9

American Crime
2004-04-06

7.052

Seabiscuit
2003-07-22

4.3

The Mod Squad
1999-03-26

0

Cold Call
2021-02-04

Awake to Danger

6

Awake to Danger
1995-03-12

5.7

Standoff
1998-01-11

8.231

This Is Us
2016-09-20

7.313

JAG
1995-09-23

8.377

The X-Files
1993-09-10

7.7

Roswell
1999-10-06

7.2

Chicago Hope
1994-09-18

Ghost Whisperer

8.1

Ghost Whisperer
2005-09-23

6.968

The Glades
2010-07-11

Rizzoli & Isles

7.907

Rizzoli & Isles
2010-07-12

7.794

24
2001-11-06

7.794

24
2001-11-06

6.349

Extant
2014-07-09

7.03

FlashForward
2009-09-24

Law & Order: LA

6.8

Law & Order: LA
2010-09-29

Diagnosis: Murder

7.1

Diagnosis: Murder
1993-10-29

8.063

Bates Motel
2013-03-18

7.1

Manhattan
2014-07-27

8.3

The West Wing
1999-09-22

Sons of Anarchy

8.423

Sons of Anarchy
2008-09-03

8.4

The Mentalist
2008-09-23

8.2

Grey's Anatomy
2005-03-27

7.765

11.22.63
2016-02-15

One West Waikiki

7.4

One West Waikiki
1994-08-04

5.8

The Nine
2006-10-04

6.612

Echoes
2022-08-19

7.5

Rectify
2013-04-22

8.143

Fringe
2008-09-09

7.2

Scandal
2012-04-05

8.395

The Resident
2018-01-21

8.076

Prison Break
2005-08-29

NCIS: Los Angeles

7.5

NCIS: Los Angeles
2009-09-22

7.628

NCIS
2003-09-23

7.8

ER
1994-09-19

Commander in Chief

7.7

Commander in Chief
2005-09-27

7.3

The Unit
2006-03-07

7.2

Shooter
2016-11-15

Tom Clancy's Jack Ryan

7.683

Tom Clancy's Jack Ryan
2018-08-30

8.306

Criminal Minds
2005-09-22

8.308

Fire Country
2022-10-07

6.93

Outer Range
2022-04-14

7.6

Leverage
2008-12-07

6.4

The Romanoffs
2018-10-11

Without a Trace

7.2

Without a Trace
2002-09-26

6.284

The Shining
1997-04-27

8.064

S.W.A.T.
2017-11-02

Crossing Jordan

7.2

Crossing Jordan
2001-09-24

7.245

Messiah
2020-01-01

7.4

LAX
2004-09-13

5.8

Happy's Place
2024-10-18

7.662

Millennium
1996-10-25

7.606

Boston Public
2000-10-23

6.574

Ally McBeal
1997-09-08

7.7

The Practice
1997-03-04

7.043

Numb3rs
2005-01-23

5.9

Close to Home
2005-09-20

7

Happy Face
2025-03-20

7.892

Boston Legal
2004-10-03