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Michael O'Neill
Actor, ProducerBorn May 29, 1947 (78 years)
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.
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.
Movies & Shows on Plex
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Filmography
| 2025 | Bride Hard · as Frank |
| 2025 | Happy Face (TV Series) · as D.a. Craig Calloway |
| 2024 | Happy's Place (TV Series) · as Jim Jackoway |
| 2023 | Air · as Joe Dean |
| 2022 | Fire Country (TV Series) · as Harlan Denbo |
| 2022 | Echoes (2022) (TV Series) · as Victor Mccleary |
| 2022 | Outer Range (TV Series) · as Judge Pettigrew |
| 2020 | The Stand at Paxton County · as Dell Connelly |
| 2020 | Council of Dads (TV Series) · as Larry Mills |
| 2020 | Messiah (2020) (TV Series) · as Cameron Collier |
| 2019 | Clemency · as Chaplain David Kendricks |
| 2018 | Indivisible · as Chaplain Rogers |
| 2018 | The Romanoffs (TV Series) · as Ron Hopkins |
| 2018 | Danger One · as Beckwith |
| 2018 | Tom Clancy's Jack Ryan (TV Series) · as Senator Mitchell Chapin |
| 2018 | The Resident (TV Series) · as Joshua Williams |
| 2017 | S.W.A.T. (2017) (TV Series) · as Carl Luca |
| 2016 | Shooter (TV Series) · as Ray Brooks |
| 2016 | This Is Us (TV Series) · as Arlo |
| 2016 | 11.22.63 (TV Series) · as Arliss Price |
| 2015 | Battle Creek (TV Series) · as Councilman Pritchett |
| 2014 | |
| 2014 | Extant (TV Series) · as Alan Sparks |
| 2014 | The Grim Sleeper · as Detective Simms |
| 2013 | Dallas Buyers Club · as Richard Barkley |
| 2013 | Rectify (TV Series) · as Senator Roland Foulkes |
| 2013 | Bates Motel (TV Series) · as Nick Ford |
| 2012 | Vegas (TV Series) · as Mayor Ted Bennett |
| 2012 | Scandal (2012) (TV Series) · as Lonnie Mencken |
| 2011 | J. Edgar · as Senator Mckellar |
| 2011 | Prime Suspect (US) (TV Series) · as Commander Wells |
| 2011 | Necessary Roughness (TV Series) · as Hank Griffin |
| 2010 | Law & Order: LA (TV Series) · as Jeb Monroe |
| 2010 | Rizzoli & Isles (TV Series) · as Jonathan Mcknight |
| 2010 | The Glades (TV Series) · as Trent Staley |
| 2010 | Miami Medical (TV Series) · as Dr. Bruce Kaye |
| 2010 | Green Zone · as Colonel Bethel |
| 2010 | Flying Lessons · as Chief Dobbs |
| 2009 | Grey's Anatomy: The Webisodes (TV Series) · as Gary Clark |
| 2009 | FlashForward (TV Series) · as Cia Director Keller |
| 2009 | NCIS: Los Angeles (TV Series) · as Ret. U.s. Army General Richard Collins |
| 2008 | Nothing But the Truth · as Cia Director |
| 2008 | Leverage (TV Series) · as Judge Roy |
| 2008 | A Quiet Little Marriage · as Bruce |
| 2008 | My Own Worst Enemy (TV Series) · as Alexander Desantos |
| 2008 | The Mentalist (TV Series) · as Sheriff Nelson |
| 2008 | Fringe (TV Series) · as Sheriff Velchik |
| 2008 | Sons of Anarchy (TV Series) · as Anthony Franklin |
| 2008 | |
| 2007 | Women's Murder Club (TV Series) · as Fbi Agent Ted Thorne |
| 2007 | K-Ville (TV Series) · as Father Dennehy |
| 2007 | Transformers · as Tom Banacheck |
| 2007 | Army Wives (TV Series) · as Reverend Bankerd |
| 2006 | Lincoln Heights (TV Series) · as Captain |
| 2006 | 3 Lbs. (TV Series) · as James Wills |
| 2006 | The Nine (TV Series) · as Pete Burton |
| 2006 | The Unit (TV Series) · as Ron Cheals |
| 2005 | Close to Home (TV Series) · as Don Wheeler |
| 2005 | Commander In Chief (TV Series) · as Congressman Wilcox |
| 2005 | Ghost Whisperer (TV Series) · as Nolan |
| 2005 | Criminal Minds (TV Series) · as Det. Yarbough |
| 2005 | Prison Break (TV Series) · as Herb Stanton |
| 2005 | Grey's Anatomy (TV Series) · as Gary Clark |
| 2005 | Numb3rs (TV Series) · as Boyd Keene |
| 2004 | Around the Bend · as Cowboy |
| 2004 | Boston Legal (TV Series) · as Dr. Robert Mclean |
| 2004 | LAX (TV Series) · as Alonso Mathews |
| 2004 | |
| 2004 | American Crime · as Sheriff Smyth |
| 2003 | Cold Case (TV Series) · as Warren Cousins |
| 2003 | Secondhand Lions · as Ralph |
| 2003 | Carnivàle (TV Series) · as Sheriff Lyle Donovan |
| 2003 | NCIS (TV Series) · as Riley Mccallister |
| 2003 | Seabiscuit · as Mr. Pollard |
| 2003 | Dreamcatcher · as General Matheson |
| 2002 | Without a Trace (TV Series) · as Thomas Shannon |
| 2002 | Presidio Med (TV Series) · as Cast |
| 2002 | CSI: Miami (TV Series) · as Jerry Blackburn |
| 2001 | 24 (TV Series) · as Richard Walsh |
| 2001 | Crossing Jordan (TV Series) · as Chris Benz |
| 2000 | Traffic · as Lawyer Rodman |
| 2000 | The Legend of Bagger Vance · as O.b. Keeler |
| 2000 | Boston Public (TV Series) · as Dr. Bernard Colbert |
| 1999 | Roswell (TV Series) · as Philip Evans |
| 1999 | The West Wing (TV Series) · as Ron Butterfield |
| 1999 | Judging Amy (TV Series) · as D.a. Dave Sherman |
| 1999 | ATF · as Atf Asst. Director Ben Walker |
| 1999 | The Mod Squad · as Greene |
| 1998 | Mercy Point (TV Series) · as Cast |
| 1998 | Dancer, Texas Pop. 81 · as Mr. Lusk |
| 1998 | |
| 1998 | Standoff · as Cult Leader (voice) |
| 1997 | Ally McBeal (TV Series) · as Dr. Colbert |
| 1997 | The Shining (TV Series) · as Daniel Edwards (uncredited) |
| 1997 | The Practice (TV Series) · as Judge Robert Temple |
| 1997 | Orleans (TV Series) · as Cast |
| 1996 | Millennium (TV Series) · as County Prosecutor Calvin Smith |
| 1996 | The Pretender (US) (TV Series) · as Captain Harrigan |
| 1996 | Promised Land (TV Series) · as Ranger Dan Mckean |
| 1996 | The Cape (TV Series) · as Keith Mason |
| 1996 | The Sunchaser · as Agent Moreland |
| 1996 | Norma Jean & Marilyn · as Mr. Kimmel |
| 1996 | The Lazarus Man (TV Series) · as Parker Dawson |
| 1995 | JAG (TV Series) · as Commander Bradley |
| 1995 | Bushwhacked · as Jon Jordan |
| 1995 | Awake to Danger · as Detective Brickman |
| 1994 | Beyond Betrayal · as Ray Pasquerello |
| 1994 | ER (TV Series) · as Col. Ken Kilner |
| 1994 | Chicago Hope (TV Series) |
| 1994 | One West Waikiki (TV Series) |
| 1994 | Blind Justice · as Spencer Heymen |
| 1993 | Victim of Love: The Shannon Mohr Story · as Dick Britton |
| 1993 | Diagnosis Murder (TV Series) · as Sheriff Buck O'hara |
| 1993 | NYPD Blue (TV Series) · as Capt. Chuck Dowling |
| 1993 | The X-Files (TV Series) · as Patrol Captain Van Gelder |
| 1993 | For Their Own Good · as Clark Thompson |
| 1992 | Lorenzo's Oil · as School Psychologist |
| 1992 | Jennifer 8 · as Serato |
| 1992 | Picket Fences (TV Series) · as Juror |
| 1992 | The Gun in Betty Lou's Handbag · as Jergens |
| 1990 | H.E.L.P. (TV Series) · as Cabot |
| 1989 | An Unremarkable Life · as Michael |
| 1989 | Sea of Love · as Raymond Brown |
| 1989 | G.P. (TV Series) · as Dr. Steve Harrison |
| 1986 | L.A. Law (TV Series) · as Robert Moran |
| 1981 | Ghost Story · as Churchill |
| 1976 | Quincy, M.E. (TV Series) · as First Mate |
| 1965 | Days of our Lives (TV Series) · as Father Jansen |