Michael O'Neill

Michael O'Neill

Known for: Acting
Biography: 1947-05-29 (76 years old)

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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.

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Filmography

all 85

TV Shows 44

Movies 41

Producer 2

Director 2

Bride Hard

Bride Hard (2024)

Movie
Joe Dean
Air

Air (2023)

Movie
7
Harlan Denbo
Fire Country

Fire Country (2022)

TV
Victor McCleary
Echoes

Echoes (2022)

TV
Christian
Cold Call

Cold Call (2021)

Movie
Dell Connelly
The Stand at Paxton County

The Stand at Paxton County (2020)

Movie
Larry Mills
Council of Dads

Council of Dads (2020)

TV
8
Cameron Collier
Messiah

Messiah (2020)

TV
6.5
Chaplain David Kendricks
Clemency

Clemency (2019)

Movie
6.5
Chaplain Rogers
Indivisible

Indivisible (2018)

Movie
Ron Hopkins
The Romanoffs

The Romanoffs (2018)

TV
5
Beckwith
Danger One

Danger One (2018)

Movie
6
Senator Mitchell Chapin
Tom Clancy's Jack Ryan

Tom Clancy's Jack Ryan (2018)

TV
5.91
Joshua Williams
The Resident

The Resident (2018)

TV
5.62
Carl / Carl Luca
S.W.A.T.

S.W.A.T. (2017)

TV
6.76
Producer
On Yoga the Architecture of Peace

On Yoga the Architecture of Peace (2017)

Movie
Arlo
This Is Us

This Is Us (2016)

TV
7.46
Arliss Price
11.22.63

11.22.63 (2016)

TV
7
Psychiatrist
Manhattan

Manhattan (2014)

TV
5.78
Alan Sparks
Extant

Extant (2014)

TV
6.02
Detective Simms
The Grim Sleeper

The Grim Sleeper (2014)

Movie
Richard Barkley
Dallas Buyers Club

Dallas Buyers Club (2013)

Movie
6.28
Senator Roland Foulkes
Rectify

Rectify (2013)

TV
5.4
Nick Ford
Bates Motel

Bates Motel (2013)

TV
5.8
Lonnie Mencken
Scandal

Scandal (2012)

TV
5.85
Senator McKellar
J. Edgar

J. Edgar (2011)

Movie
1.5
Jeb Monroe
Law & Order: LA

Law & Order: LA (2010)

TV
6
Jonathan McKnight
Rizzoli & Isles

Rizzoli & Isles (2010)

TV
6.2
Trent Staley
The Glades

The Glades (2010)

TV
1
Colonel Bethel
Green Zone

Green Zone (2010)

Movie
6
CIA Director Keller
FlashForward

FlashForward (2009)

TV
5.29
Ret. U.S. Army General Richard Collins
NCIS: Los Angeles

NCIS: Los Angeles (2009)

TV
7.09
Judge Roy
Leverage

Leverage (2008)

TV
6.42
Bruce
A Quiet Little Marriage

A Quiet Little Marriage (2008)

Movie
Sheriff Nelson
The Mentalist

The Mentalist (2008)

TV
6.61
Sheriff Velchik
Fringe

Fringe (2008)

TV
6.01
Anthony Franklin
Sons of Anarchy

Sons of Anarchy (2008)

TV
7.18
Ralph Christianson
Crazy

Crazy (2008)

Movie
Tom Banacheck
Transformers

Transformers (2007)

Movie
6.07
Pete Burton
The Nine

The Nine (2006)

TV
Ron Cheals
The Unit

The Unit (2006)

TV
3.5
Congressman Wilcox
Commander in Chief

Commander in Chief (2005)

TV
Nolan
Ghost Whisperer

Ghost Whisperer (2005)

TV
6.63
Det. Yarbough
Criminal Minds

Criminal Minds (2005)

TV
6.04
Herb Stanton
Prison Break

Prison Break (2005)

TV
7.14
Gary Clark
Grey's Anatomy

Grey's Anatomy (2005)

TV
7.18
Cowboy
Around the Bend

Around the Bend (2004)

Movie
Sheriff Smyth
American Crime

American Crime (2004)

Movie
Riley McCallister
NCIS

NCIS (2003)

TV
6.18
Ralph
Secondhand Lions

Secondhand Lions (2003)

Movie
6
Mr. Pollard
Seabiscuit

Seabiscuit (2003)

Movie
5.33
General Matheson
Dreamcatcher

Dreamcatcher (2003)

Movie
5
Co-Producer
The Emperor's Club

The Emperor's Club (2002)

Movie
Thomas Shannon
Without a Trace

Without a Trace (2002)

TV
7.14
Richard Welsh / Richard Walsh
24

24 (2001)

TV
6.29
Chris Benz
Crossing Jordan

Crossing Jordan (2001)

TV
5.95
Lawyer Rodman
Traffic

Traffic (2000)

Movie
6.05
O.B. Keeler
The Legend of Bagger Vance

The Legend of Bagger Vance (2000)

Movie
10
Philip Evans
Roswell

Roswell (1999)

TV
4.57
Ron Butterfield
The West Wing

The West Wing (1999)

TV
5.66
Asst. A.T.F. Director Ben Walker
ATF

ATF (1999)

Movie
Greene
The Mod Squad

The Mod Squad (1999)

Movie
5.81
Mr. Lusk
Dancer, Texas Pop. 81

Dancer, Texas Pop. 81 (1998)

Movie
Virtual Obsession

Virtual Obsession (1998)

Movie
Daniel Edwards (uncredited)
The Shining

The Shining (1997)

TV
5.5
Agent Moreland
The Sunchaser

The Sunchaser (1996)

Movie
Commander Bradley
JAG

JAG (1995)

TV
4.4
Jon Jordan
Bushwhacked

Bushwhacked (1995)

Movie
5.58
Detective Brickman
Awake to Danger

Awake to Danger (1995)

Movie
Ray Pasquerello
Beyond Betrayal

Beyond Betrayal (1994)

Movie
Col. Ken Kilner
ER

ER (1994)

TV
5.44
Chicago Hope

Chicago Hope (1994)

TV
6
One West Waikiki

One West Waikiki (1994)

TV
Spencer Heymen
Blind Justice

Blind Justice (1994)

Movie
Dick Britton
Victim of Love: The Shannon Mohr Story

Victim of Love: The Shannon Mohr Story (1993)

Movie
Sheriff Buck O'Hara
Diagnosis: Murder

Diagnosis: Murder (1993)

TV
6.46
Patrol Captain Van Gelder
The X-Files

The X-Files (1993)

TV
6
Clark Thompson
For Their Own Good

For Their Own Good (1993)

Movie
School Psychologist
Lorenzo's Oil

Lorenzo's Oil (1992)

Movie
9.5
Serato
Jennifer Eight

Jennifer Eight (1992)

Movie
1
Jergens
The Gun in Betty Lou's Handbag

The Gun in Betty Lou's Handbag (1992)

Movie
Michael
An Unremarkable Life

An Unremarkable Life (1989)

Movie
Raymond Brown
Sea of Love

Sea of Love (1989)

Movie
6
Churchill
Ghost Story

Ghost Story (1981)

Movie
Actor
War of the Worlds

War of the Worlds

Movie

Ratings

Average 6.58
Based on 6.31 Million movie and tv ratings over time
1981
1998
2005
2000
2023
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Information

Known For
Acting

Gender
Male

Birthday
1947-05-29 (76 years old)

Birth Place
Baltimore, United States of America

Citizenships
United States of America

Residences
Los Angeles, United States of America


This article uses material from Wikipedia.
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