Mark O'Brien Filmography
- Actor (27 credits)
- Anon (2018) Cyrus Frear
- State Like Sleep (2018) Darren
- Kin (2018) Jake
- City on a Hill (2018) Jimmy Ryan
- The Front Runner (2018) Billy Shore
- Bad Times at the El Royale (2018)
- How It Ends (2018) Jeremiah
- Parallel (2018) Josh
- The Last Tycoon (2016) Max Miner
- Arrival (2016) Captain Marks
- Killjoys (2015) Grayson Hicks
- How to Plan an Orgy in a Small Town (2015) Bruce Buck
- End of Days, Inc. (2015) Jason
- The Dark Stranger (2015) Mark
- Len and Company (2015) Zach
- Dennis (2015) Dennis
- Whitehorse (2015) Evan
- Wanderer (2015) Eric
- Halt and Catch Fire (2014) Tom Rendon
- Hannibal (2013)
- Sweetieface (2013)
- Beat Down (2012) Michael
- Republic of Doyle (2010) Des Courtney
- Grown Up Movie Star (2009) Will
- The One That Got Away (2008) Tommy Palchek
- Above and Beyond (2006) Drake
- My Foolish Heart Ben
- Director (4 credits)
- Editor (1 credits)
- Producer (3 credits)
- Writer (1 credits)
