Michael O'Neill
- Acting
- May 29, 1947 · Montgomery, Alabama, USA
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.
Known for
Filmography
- War of the Worlds · Secretary of Defense Walter Crystal
- Bride Hard · Frank
- Happy Face · D.A. Craig Calloway
- Happy's Place · Jim Jackoway
- Tracker · Buck Avery
- Air · Joe Dean
- Fire Country · Harlan Denbo
- Echoes · Victor McCleary
- Outer Range · Judge Pettigrew
- Cold Call · Christian
- The Stand at Paxton County · Dell Connelly
- Messiah · Cameron Collier
- Clemency · Chaplain David Kendricks
- Indivisible · Chaplain Rogers
- The Romanoffs · Ron Hopkins
- Danger One · Beckwith
- Tom Clancy's Jack Ryan · Senator Mitchell Chapin
- The Resident · Joshua Williams
- S.W.A.T. · Carl Luca
- On Yoga: The Architecture of Peace · Producer
- Shooter · Ray Brooks
- This Is Us · Arlo
- 11.22.63 · Arliss Price
- Manhattan · Psychiatrist
- Extant · Alan Sparks
- The Grim Sleeper · Detective Simms
- Dallas Buyers Club · Richard Barkley
- Rectify · Senator Roland Foulkes
- Bates Motel · Nick Ford
- Vegas · Mayor Ted Bennett
- Scandal · Lonnie Mencken
- J. Edgar · Senator McKellar
- Law & Order: LA · Jeb Monroe
- Rizzoli & Isles · Jonathan McKnight
- The Glades · Trent Staley
- Green Zone · Colonel Bethel
- Flying Lessons · Chief Dobbs
- FlashForward · CIA Director Keller
- NCIS: Los Angeles · Ret. U.S. Army General Richard Collins
- Nothing But the Truth · CIA Director
- Leverage · Judge Roy
- A Quiet Little Marriage · Bruce
- The Mentalist · Sheriff Nelson
- Fringe · Sheriff Velchik
- Sons of Anarchy · Anthony Franklin
- Crazy · Ralph Christianson
- Transformers · Tom Banacheck
- Army Wives · Reverend Bankerd
- The Nine · Pete Burton
- The Unit · Ron Cheals
- Commander in Chief · Congressman Wilcox
- Ghost Whisperer · Nolan
- Criminal Minds · Det. Yarbough
- Close to Home · Don Wheeler
- Prison Break · Herb Stanton
- Grey's Anatomy · Gary Clark
- Numb3rs · Boyd Keene
- Around the Bend · Cowboy
- Boston Legal · Dr. Robert McLean
- LAX · Alonso Mathews
- American Crime · Sheriff Smyth
- NCIS · Riley McCallister
- Secondhand Lions · Ralph
- Seabiscuit · Mr. Pollard
- Dreamcatcher · Gen. Matheson
- The Emperor's Club · Co-producer
- Without a Trace · Thomas Shannon
- CSI: Miami · Jerry Blackburn
- 24 · Richard Walsh, Richard Welsh
- Crossing Jordan · Chris Benz
- Traffic · Lawyer Rodman
- The Legend of Bagger Vance · O.B. Keeler
- Boston Public · Dr. Bernard Colbert
- Roswell · Philip Evans
- The West Wing · Ron Butterfield
- ATF · ATF Asst. Director Ben Walker
- The Mod Squad · Greene
- Dancer, Texas Pop. 81 · Mr. Lusk
- Virtual Obsession
- Standoff · Cult Leader (Voice)