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Michael O'Neill

Michael O'Neill

  • Born on
    • May 29th, 1947
​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.

Filmography

Acting (26 Credits)

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2020The Stand at Paxton County as Dell Connelly
2019Clemency as Chaplain David Kendricks
2018Danger One as Beckwith
2018Indivisible as Chaplain Rogers
2018Indivisible as Chaplain Rogers
201611.22.63 as Mr. Price
2014The Grim Sleeper as Detective Simms
2013Dallas Buyers Club as Richard Barkley
2011J. Edgar as Senator McKellar
2010Green Zone as Colonel Bethel
2008Crazy as Ralph Christianson
2007Transformers as Tom Banacheck
2004American Crime as Sheriff Smyth
2004Around the Bend as Cowboy
2003Secondhand Lions as Ralph
2003Seabiscuit as Mr. Pollard
2003Dreamcatcher as General Matheson
2000The Legend of Bagger Vance as O.B. Keeler
2000Traffic as Lawyer Rodman
1999The Mod Squad as Greene
1998Dancer, Texas Pop. 81 as Mr. Lusk
1996The Sunchaser as Agent Moreland
1992Jennifer 8 as Serato
1992Lorenzo's Oil as School Psychologist
1989Sea of Love as Raymond Brown
1981Ghost Story as Churchill

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