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. H...
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Transformers
As Tom Banacheck
Green Zone
As Colonel Bethel
Dreamcatcher
As General Matheson
The Gun in Betty Lou's Handbag
As Jergens
Air
As Joe Dean
Around the Bend
As Cowboy
Blind Justice
As Spencer Heymen
A Quiet Little Marriage
As Bruce
Dancer, Texas Pop. 81
As Mr. Lusk
War of the Worlds
Dallas Buyers Club
As Richard Barkley
For Their Own Good
As Clark Thompson
An Unremarkable Life
As Michael
Bride Hard
Bushwhacked
As Jon Jordan
The Grim Sleeper
As Detective Simms
Virtual Obsession
The Legend of Bagger Vance
As O.B. Keeler
Traffic
As Lawyer Rodman
Nothing But the Truth
As CIA Director
ATF
As Asst. A.T.F. Director Ben Walker
Crazy
As Ralph Christianson
Victim of Love: The Shannon Mohr Story
As Dick Britton
Secondhand Lions
As Ralph
Indivisible
As Chaplain Rogers
The Sunchaser
As Agent Moreland
Jennifer Eight
As Serato
Danger One
As Beckwith
Ghost Story
As Churchill
Sea of Love
As Raymond Brown
Clemency
As Chaplain David Kendricks
Lorenzo's Oil
As School Psychologist
Beyond Betrayal
As Ray Pasquerello
The Stand at Paxton County
As Dell Connelly
J. Edgar
As Senator McKellar
American Crime
As Sheriff Smyth
Seabiscuit
As Mr. Pollard
The Mod Squad
As Greene
Cold Call
As Christian
Awake to Danger
As Detective Brickman
This Is Us
As Arlo
JAG
As Commander Bradley
The X-Files
As Patrol Captain Van Gelder
Roswell
As Philip Evans
Chicago Hope
Ghost Whisperer
As Nolan
The Glades
As Trent Staley
Rizzoli & Isles
As Jonathan McKnight
24
As Richard Walsh
Extant
As Alan Sparks
FlashForward
As CIA Director Keller
Law & Order: LA
As Jeb Monroe
Diagnosis: Murder
As Sheriff Buck O'Hara
Bates Motel
As Nick Ford
Manhattan
As Psychiatrist
The West Wing
As Ron Butterfield
Sons of Anarchy
As Anthony Franklin
The Mentalist
As Sheriff Nelson
Grey's Anatomy
As Gary Clark
11.22.63
As Arliss Price
One West Waikiki
The Nine
As Pete Burton
Echoes
As Victor McCleary
Rectify
As Senator Roland Foulkes
Fringe
As Sheriff Velchik
Scandal
As Lonnie Mencken
The Resident
As Joshua Williams
Prison Break
As Herb Stanton
NCIS: Los Angeles
As Ret. U.S. Army General Richard Collins
NCIS
As Riley McCallister
ER
As Col. Ken Kilner
Commander in Chief
As Congressman Wilcox
The Unit
As Ron Cheals
Shooter
As Ray Brooks
Tom Clancy's Jack Ryan
As Senator Mitchell Chapin
Criminal Minds
As Det. Yarbough
Fire Country
As Harlan Denbo
Outer Range
As Judge Pettigrew
Leverage
As Judge Roy
The Romanoffs
As Ron Hopkins
Without a Trace
As Thomas Shannon
The Shining
As Daniel Edwards (uncredited)
S.W.A.T.
As Carl Luca
Crossing Jordan
As Chris Benz
Messiah
As Cameron Collier
LAX
As Alonso Mathews
Happy's Place
As Jim Jackoway
Millennium
As County Prosecutor Calvin Smith
