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He played Sgt. Maj. Ron Cheals in CBS' action drama series The Unit. He starred in the Season 6 two-part finale of Grey's Anatomy as Gary Clark, the broken widower who holds the hospital hostage with a 9mm while pursuing the doctors responsible for unplugging his wife's life support. [7]
Michael O'Neill was born on 29 May 1951 in Montgomery, Alabama. He is an actor, known for Dallas Buyers Club (2013), Transformers (2007) and Seabiscuit (2003). He is married to Mary O'Keefe.
- January 1, 1
- 1.88 m
- Montgomery, Alabama
Michael O'Neill is an actor born in Montgomery, Alabama, known for his roles in Dallas Buyers Club, Transformers and Seabiscuit. He is married to Mary O'Keefe and has three daughters. Learn more about his life, career and trivia on IMDb.
- May 29, 1951
See Michael O'Neill full list of movies and tv shows from their career. Find where to watch Michael O'Neill's latest movies and tv shows.
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.
May 7, 2024 · Learn about the life and career of Michael O'Neill, a film and television actor who was born and educated in Alabama. He has appeared in movies such as Dallas Buyers Club and Seabiscuit and TV shows such as The West Wing and The X-Files.
Michael O'Neill. Highest Rated: 92% Clemency (2019) Lowest Rated: 3% The Mod Squad (1999) Birthday: May 29, 1951. Birthplace: Montgomery, Alabama, USA. Character actor Michael O'Neill...
