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Michael O'Neill 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.
Gender: Male
Last Info Sync: 9/13/2018 2:47:00 PM
Michael O'Neill's Filmography on TV
List of programs starring Michael O'Neill on tv. Programs are sorted in order of last seen on tv. Last updated: Apr 27, 2024 11:40 PM
Clemency (2019)
Years of carrying out death row executions have taken a toll on prison warden Bernadine Williams. As she prepares to execute another inmate, Bernadine must confront the psychological and emotional demons her job creates, ultimately connecting her to the man she is sanctioned to kill.
Dallas (2013)
Loosely based on the true-life tale of Ron Woodroof, a drug-taking, women-loving, homophobic man who in 1986 was diagnosed with HIV/AIDS and given thirty days to live.
Dallas Buyers Club (2013)
Loosely based on the true-life tale of Ron Woodroof, a drug-taking, women-loving, homophobic man who in 1986 was diagnosed with HIV/AIDS and given thirty days to live.
Green Zone (2010)
During the U.S.-led occupation of Baghdad in 2003, Chief Warrant Officer Roy Miller and his team of Army inspectors were dispatched to find weapons of mass destruction believed to be stockpiled in the Iraqi desert. Rocketing from one booby-trapped and treacherous site to the next, the men search for deadly chemical agents but stumble instead upon an elaborate cover-up that threatens to invert the purpose of their mission.
Transformers (2007)
Young teenager, Sam Witwicky becomes involved in the ancient struggle between two extraterrestrial factions of transforming robots – the heroic Autobots and the evil Decepticons. Sam holds the clue to unimaginable power and the Decepticons will stop at nothing to retrieve it.
Transformer (2007)
Young teenager, Sam Witwicky becomes involved in the ancient struggle between two extraterrestrial factions of transforming robots – the heroic Autobots and the evil Decepticons. Sam holds the clue to unimaginable power and the Decepticons will stop at nothing to retrieve it.
Around The Bend (2004)
A tale of four generations of men, all of whom have had their offspring at a young age: a great-grandfather, a grandfather, a father in his twenties and a son who is about 7 years old. When the oldest member passes away, the trio heads out on the road together in the Southwest to search out an old family secret that connects to their past.
Secondhand Lions (2003)
"Secondhand Lions" follows the comedic adventures of an introverted boy left on the doorstep of a pair of reluctant, eccentric great-uncles, whose exotic remembrances stir the boy's spirit and re-ignite the men's lives.
Lions (2003)
"Secondhand Lions" follows the comedic adventures of an introverted boy left on the doorstep of a pair of reluctant, eccentric great-uncles, whose exotic remembrances stir the boy's spirit and re-ignite the men's lives.
L'acchiappasogni (2003)
Four boyhood pals perform a heroic act and are changed by the powers they gain in return. Years later, on a hunting trip in the Maine woods, they're overtaken by a vicious blizzard that harbors an ominous presence. Challenged to stop an alien force, the friends must first prevent the slaughter of innocent civilians by a military vigilante ... and then overcome a threat to the bond that unites the four of them.