Actor info
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Name :
Mark O'Brien
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Born :
May 7, 1984 in St. Johns, Newfoundland, Canada (42 years old)
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Known for :
Acting
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Gender :
Male
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Film career :
43 films (2008–2026)
- Links :
Biography
Mark O'Brien (born May 7th, 1984) is a Canadian actor and director. He is best known for playing the role of Des Courtney in Republic of Doyle (2010) and Tom Rendon in Halt and Catch Fire (2014).
Notable films
- Nuremberg (2025) as Colonel John Amen
- Marriage Story (2019) as Carter Mitchum
- Ready or Not (2019) as Alex
- How It Ends (2018) as Jeremiah
- Arrival (2016) as Captain Marks
