Mark O'Brien
- Directing
- Cast
- Born
- 7 May 1984
- Place of birth
- St. Johns, Newfoundland, Canada
- Known for
- Acting · Arrival, Ready or Not, Bad Times at the El Royale, How It Ends
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).
Filmography
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