Mark O'Brien: movies and TV shows
Mark O'Brien has 81 credits in the archive: 68 films and 13 TV series, from 2008 to 2026. Highest rated: Hannibal (8.3/10).
Career timeline
2008 – 2026 · busiest year: 2008 (8 credits)
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Full filmography
| Year | Title | Role | Type | Rating | Age then |
|---|---|---|---|---|---|
| 2026 | The Outer Threat | Film | — | 42 | |
| 2026 | The Voices of Our Mother | William | Film | 6.4 | 42 |
| 2026 | The Voices of Our Mother | Film | 6.4 | 42 | |
| 2026 | The Voices of Our Mother | Film | 6.4 | 42 | |
| 2025 | Nuremberg | Colonel John Amen | Film | 7.6 | 41 |
| 2025 | The Copenhagen Test | Edmund Cobb | TV | 6.5 | 41 |
| 2025 | The Memory Keeper | Elizeus Carrier | Film | — | 41 |
| 2025 | Shadow of God | Mason Harper | Film | 5.7 | 41 |
| 2025 | Seven Veils | Paul | Film | 5.7 | 41 |
| 2025 | Topper | Topper | Film | 5.3 | 41 |
| 2024 | The Sticky | Charlie | TV | 7.2 | 40 |
| 2022 | 61st Street | Officer Logan | TV | 6.6 | 38 |
| 2021 | Blue Bayou | Ace | Film | 7.4 | 37 |
| 2021 | The Righteous | Aaron Smith | Film | 6.3 | 37 |
| 2021 | The Righteous | Film | 6.3 | 37 | |
| 2021 | The Righteous | Film | 6.3 | 37 | |
| 2021 | The Righteous | Film | 6.3 | 37 | |
| 2020 | Perry Mason | Thomas Milligan | TV | 7.2 | 36 |
| 2020 | Your Honor | Father Jay | TV | 8.1 | 36 |
| 2019 | The Kelly Clarkson Show | Self | TV | 6.3 | 35 |
| 2019 | Ready or Not | Alex | Film | 7.1 | 35 |
| 2019 | City on a Hill | Jimmy Ryan | TV | 7.3 | 35 |
| 2019 | Marriage Story | Carter Mitchum | Film | 7.7 | 35 |
| 2019 | State Like Sleep | Darren | Film | 4.7 | 35 |
| 2019 | Goalie | Terry Sawchuk | Film | 6.8 | 35 |
| 2019 | Goalie | Film | 6.8 | 35 | |
| 2019 | Hammer | Chris Davis | Film | 5.4 | 35 |
| 2018 | Bad Times at the El Royale | Larsen Rogers | Film | 6.8 | 34 |
| 2018 | The Darkest Minds | Rob Meadows | Film | 7.0 | 34 |
| 2018 | How It Ends | Jeremiah | Film | 5.3 | 34 |
| 2018 | Anon | Cyrus Frear | Film | 6.0 | 34 |
| 2018 | Kin | Jake | Film | 6.1 | 34 |
| 2018 | The Front Runner | Billy Shore | Film | 5.9 | 34 |
| 2018 | Parallel | Josh | Film | 6.0 | 34 |
| 2017 | The Last Tycoon | Max Miner | TV | 7.0 | 33 |
| 2016 | Arrival | Captain Marks | Film | 7.6 | 32 |
| 2016 | The Dark Stranger | Mark | Film | 4.9 | 32 |
| 2016 | Wanderer | Eric | Film | — | 32 |
| 2016 | Wanderer | Film | — | 32 | |
| 2016 | Wanderer | Film | — | 32 | |
| 2015 | Killjoys | Grayson Hicks | TV | 6.9 | 31 |
| 2015 | How to Plan an Orgy in a Small Town | Bruce Buck | Film | 5.1 | 31 |
| 2015 | Dennis | Dennis | Film | — | 31 |
| 2015 | Dennis | Film | — | 31 | |
| 2015 | End of Days, Inc. | Jason | Film | 5.8 | 31 |
| 2014 | Halt and Catch Fire | Tom Rendon | TV | 7.9 | 30 |
| 2013 | Hannibal | Randall Tier | TV | 8.3 | 29 |
| 2013 | Sweetieface | Sam | Film | — | 29 |
| 2013 | Sweetieface | Film | — | 29 | |
| 2013 | Sweetieface | Film | — | 29 | |
| 2013 | Sweetieface | Film | — | 29 | |
| 2012 | Beat Down | Michael | Film | — | 28 |
| 2011 | Kathy | Film | — | 27 | |
| 2010 | Republic of Doyle | Des Courtney | TV | 7.0 | 26 |
| 2010 | Brad | Brad | Film | — | 26 |
| 2010 | Brad | Film | — | 26 | |
| 2010 | Brad | Film | — | 26 | |
| 2010 | Grown Up Movie Star | Will | Film | 5.1 | 26 |
| 2010 | Snarbuckled | Jacob O'Higgins | Film | — | 26 |
| 2009 | Warehouse 13 | Jerry Hoffler | TV | 7.7 | 25 |
| 2009 | Quiet at Dawn | Watts | Film | — | 25 |
| 2009 | Mum's the Word | Curtis | Film | — | 25 |
| 2009 | Cut from the Same Cloth | Jack Cochrane | Film | — | 25 |
| 2008 | Pretty Girls | Film | — | 24 | |
| 2008 | Pretty Girls | Film | — | 24 | |
| 2008 | Pretty Girls | Film | — | 24 | |
| 2008 | Pretty Girls | Film | — | 24 | |
| 2008 | The Four Horsemen | Eric Rollins | Film | 3.8 | 24 |
| 2008 | Epilogue | Henry | Film | — | 24 |
| 2008 | The One That Got Away | Tommy Palchek | Film | 4.3 | 24 |
| 2008 | Heartless Disappearance Into Labrador Seas | Charlie | Film | — | 24 |
| Little One | Film | — | — | ||
| Better People | John | Film | — | — | |
| Better People | Film | — | — | ||
| Better People | Film | — | — | ||
| Better People | Film | — | — | ||
| Good in the Room | Charlie | Film | — | — | |
| Good in the Room | Film | — | — | ||
| Good in the Room | Film | — | — | ||
| Nice People | Film | — | — | ||
| Nice People | Film | — | — |