Michael O'Neill

Michael O'Neill

ActorProducerProduction May 29 (age 78) Montgomery, Alabama, USA 1981–2025 (44 year career)
6.8 avg rating

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-dr…

Known For

Filmography

Acting (99)

·

Movies (42)

War of the Worlds

War of the Worlds

2025

as Secretary of Defense Walter Crystal

4.2
Bride Hard

Bride Hard

2025

as Frank

5.6
Air

Air

2023

as Joe Dean

7.3
Cold Call

Cold Call

2021

as Christian

The Stand at Paxton County

The Stand at Paxton County

2020

as Dell Connelly

5.9
Clemency

Clemency

2019

as Chaplain David Kendricks

6.3
Indivisible

Indivisible

2018

as Chaplain Rogers

6.8
Danger One

Danger One

2018

as Beckwith

6.1
The Grim Sleeper

The Grim Sleeper

2014

as Detective Simms

4.9
Dallas Buyers Club

Dallas Buyers Club

2013

as Richard Barkley

7.9
J. Edgar

J. Edgar

2011

as Senator McKellar

6.2
Green Zone

Green Zone

2010

as Colonel Bethel

6.5
Flying Lessons

Flying Lessons

2010

as Chief Dobbs

5.6
Nothing But the Truth

Nothing But the Truth

2008

as CIA Director

6.9
Crazy

Crazy

2008

as Ralph Christianson

5.3
A Quiet Little Marriage

A Quiet Little Marriage

2008

as Bruce

5.1
Transformers

Transformers

2007

as Tom Banacheck

6.8
American Crime

American Crime

2004

as Sheriff Smyth

3.6
Around the Bend

Around the Bend

2004

as Cowboy

5.9
Dreamcatcher

Dreamcatcher

2003

as Gen. Matheson

5.6
Secondhand Lions

Secondhand Lions

2003

as Ralph

7.2
Seabiscuit

Seabiscuit

2003

as Mr. Pollard

7.1
Traffic

Traffic

2000

as Lawyer Rodman

7.1
The Legend of Bagger Vance

The Legend of Bagger Vance

2000

as O.B. Keeler

6.6
The Mod Squad

The Mod Squad

1999

as Greene

4.4
ATF

ATF

1999

as ATF Asst. Director Ben Walker

4.7
Dancer, Texas Pop. 81

Dancer, Texas Pop. 81

1998

as Mr. Lusk

7.0
Standoff

Standoff

1998

as Cult Leader (Voice)

5.6
Virtual Obsession

Virtual Obsession

1998
3.7
The Sunchaser

The Sunchaser

1996

as Agent Moreland

6.3
Awake to Danger

Awake to Danger

1995

as Detective Brickman

6.0
Bushwhacked

Bushwhacked

1995

as Jon Jordan

5.4
Blind Justice

Blind Justice

1994

as Spencer Heymen

5.1
Beyond Betrayal

Beyond Betrayal

1994

as Ray Pasquerello

6.3
For Their Own Good

For Their Own Good

1993

as Clark Thompson

6.2
Victim of Love: The Shannon Mohr Story

Victim of Love: The Shannon Mohr Story

1993

as Dick Britton

7.2
Lorenzo's Oil

Lorenzo's Oil

1992

as School Psychologist

7.1
Jennifer Eight

Jennifer Eight

1992

as Serato

6.1
The Gun in Betty Lou's Handbag

The Gun in Betty Lou's Handbag

1992

as Jergens

5.1
Sea of Love

Sea of Love

1989

as Raymond Brown

6.6
An Unremarkable Life

An Unremarkable Life

1989

as Michael

Ghost Story

Ghost Story

1981

as Churchill

6.0

Television (57)

Happy Face

Happy Face

2025

as D.A. Craig Calloway

6.9
Happy's Place

Happy's Place

2024

as Jim Jackoway

5.9
Fire Country

Fire Country

2022

as Harlan Denbo

8.1
Outer Range

Outer Range

2022

as Judge Pettigrew

6.9
Echoes

Echoes

2022

as Victor McCleary

6.6
Messiah

Messiah

2020

as Cameron Collier

7.2
The Resident

The Resident

2018

as Joshua Williams

8.4
Tom Clancy's Jack Ryan

Tom Clancy's Jack Ryan

2018

as Senator Mitchell Chapin

7.7
The Romanoffs

The Romanoffs

2018

as Ron Hopkins

6.3
S.W.A.T.

S.W.A.T.

2017

as Carl Luca

8.0
This Is Us

This Is Us

2016

as Arlo

8.2
Shooter

Shooter

2016

as Ray Brooks

7.2
11.22.63

11.22.63

2016

as Arliss Price

7.8
Extant

Extant

2014

as Alan Sparks

6.3
Manhattan

Manhattan

2014

as Psychiatrist

7.0
Bates Motel

Bates Motel

2013

as Nick Ford

8.1
Rectify

Rectify

2013

as Senator Roland Foulkes

7.6
Scandal

Scandal

2012

as Lonnie Mencken

7.2
Rizzoli & Isles

Rizzoli & Isles

2010

as Jonathan McKnight

7.9
Law & Order: LA

Law & Order: LA

2010

as Jeb Monroe

6.9
The Glades

The Glades

2010

as Trent Staley

6.9
NCIS: Los Angeles

NCIS: Los Angeles

2009

as Ret. U.S. Army General Richard Collins

7.5
FlashForward

FlashForward

2009

as CIA Director Keller

7.0
The Mentalist

The Mentalist

2008

as Sheriff Nelson

8.4
Fringe

Fringe

2008

as Sheriff Velchik

8.1
Sons of Anarchy

Sons of Anarchy

2008

as Anthony Franklin

8.4
Leverage

Leverage

2008

as Judge Roy

7.6
Army Wives

Army Wives

2007

as Reverend Bankerd

7.5
The Unit

The Unit

2006

as Ron Cheals

7.3
The Nine

The Nine

2006

as Pete Burton

5.8
Grey's Anatomy

Grey's Anatomy

2005

as Gary Clark

8.2
Criminal Minds

Criminal Minds

2005

as Det. Yarbough

8.3
Prison Break

Prison Break

2005

as Herb Stanton

8.1
Numb3rs

Numb3rs

2005

as Boyd Keene

7.0
Ghost Whisperer

Ghost Whisperer

2005

as Nolan

8.1
Close to Home

Close to Home

2005

as Don Wheeler

5.9
Commander in Chief

Commander in Chief

2005

as Congressman Wilcox

7.6
Boston Legal

Boston Legal

2004

as Dr. Robert McLean

7.9
LAX

LAX

2004

as Alonso Mathews

7.1
NCIS

NCIS

2003

as Riley McCallister

7.6
Without a Trace

Without a Trace

2002

as Thomas Shannon

7.2
CSI: Miami

CSI: Miami

2002

as Jerry Blackburn

7.7
24

24

2001

as Richard Welsh

7.8
Crossing Jordan

Crossing Jordan

2001

as Chris Benz

7.2
Boston Public

Boston Public

2000

as Dr. Bernard Colbert

7.6
The West Wing

The West Wing

1999

as Ron Butterfield

8.2
Roswell

Roswell

1999

as Philip Evans

7.7
The Practice

The Practice

1997

as Judge Robert Temple

7.6
Ally McBeal

Ally McBeal

1997

as Dr. Colbert

6.5
The Shining

The Shining

1997

as Daniel Edwards (uncredited)

6.3
Millennium

Millennium

1996

as County Prosecutor Calvin Smith

7.7
JAG

JAG

1995

as Commander Bradley

7.3
ER

ER

1994

as Col. Ken Kilner

7.8
Chicago Hope

Chicago Hope

1994

as Bill Wyzinski

7.2
One West Waikiki

One West Waikiki

1994
7.4
The X-Files

The X-Files

1993

as Patrol Captain Van Gelder

8.4
Diagnosis: Murder

Diagnosis: Murder

1993

as Sheriff Buck O'Hara

7.1