
Mark O'Brien
ActingAbout Mark O'Brien
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).
Career Statistics & Market Influence
Analyzing the cinematic journey of Mark O'Brien reveals a career defined by diverse artistic exploration. With a total of 41 major appearances, the actor has established a significant footprint in global cinema.
Genre Dominance: Drama
The majority of Mark O'Brien's filmography leans towards the Drama genre. Audience data suggests that viewers respond most favorably to this persona, though their versatility has allowed for successful crossovers into other categories.
The "Box Office" Signature
With a 20% Success Ratio (movies rated above 6.5), Mark O'Brien remains a reliable draw for studios. Their peak performance was recorded in Marriage Story, which continues to be the benchmark for their career rating-wise.
Best Mark O'Brien Movies Ranked
Must-watch hits from Mark O'Brien's career based on audience ratings.
Complete Filmography & Success Status
Tracking the career evolution and box office verdicts of Mark O'Brien.
| Year | Movie | Character | Success | More |
|---|---|---|---|---|
| 2025 | Nuremberg | Colonel John Amen | Hit | Similar → |
| 2025 | Falsehood | Elizeus Carrier | Flop | Similar → |
| 2025 | Shadow of God | Mason Harper | Average | Similar → |
| 2025 | Seven Veils | Paul | Average | Similar → |
| 2025 | Topper | Topper | Flop | Similar → |
| 2021 | Blue Bayou | Ace | Super Hit | Similar → |
| 2021 | The Righteous | Aaron Smith | Average | Similar → |
| 2019 | Hammer | Chris Davis | Flop | Similar → |
| 2019 | Marriage Story | Carter Mitchum | Super Hit | Similar → |
| 2019 | Ready or Not | Alex Le Domas | Hit | Similar → |
| 2019 | Goalie | Terry Sawchuk | Hit | Similar → |
| 2019 | State Like Sleep | Darren | Flop | Similar → |
| 2018 | The Front Runner | Billy Shore | Average | Similar → |
| 2018 | Bad Times at the El Royale | Larsen Rogers | Hit | Similar → |
| 2018 | Kin | Jake | Average | Similar → |
| 2018 | The Darkest Minds | Rob Meadows | Hit | Similar → |
| 2018 | How It Ends | Jeremiah | Flop | Similar → |
| 2018 | Anon | Cyrus Frear | Average | Similar → |
| 2018 | Parallel | Josh | Average | Similar → |
| 2016 | Arrival | Captain Marks | Super Hit | Similar → |
| 2016 | Wanderer | Eric | Flop | Similar → |
| 2016 | The Dark Stranger | Mark | Flop | Similar → |
| 2015 | How to Plan an Orgy in a Small Town | Bruce Buck | Flop | Similar → |
| 2015 | End of Days, Inc. | Jason | Average | Similar → |
| 2015 | Dennis | Dennis | Flop | Similar → |
| 2013 | Sweetieface | Sam | Flop | Similar → |
| 2012 | Beat Down | Michael | Flop | Similar → |
| 2010 | Snarbuckled | Jacob O'Higgins | Flop | Similar → |
| 2010 | Brad | Brad | Flop | Similar → |
| 2009 | Mum's the Word | Curtis | Flop | Similar → |
| 2009 | Grown Up Movie Star | Will | Flop | Similar → |
| 2009 | Quiet at Dawn | Watts | Flop | Similar → |
| 2009 | Cut from the Same Cloth | Jack Cochrane | Flop | Similar → |
| 2008 | Heartless Disappearance Into Labrador Seas | Charlie | Flop | Similar → |
| 2008 | Epilogue | Henry | Flop | Similar → |
| 2008 | The One That Got Away | Tommy Palchek | Flop | Similar → |
| 2008 | The Four Horsemen | Eric Rollins | Flop | Similar → |
| N/A | The Voices of Our Mother | William | Flop | Similar → |
| N/A | The Outer Threat | - | Flop | Similar → |
| N/A | Better People | John | Flop | Similar → |
| N/A | Nice People | - | Flop | Similar → |
Mark O'Brien - Frequently Asked Questions
What is the best movie of Mark O'Brien?
According to audience ratings, the best movie starring Mark O'Brien is "Marriage Story" with a rating of 7.7/10.
How many movies has Mark O'Brien acted in?
Mark O'Brien has been featured in at least 41 major films throughout their career.
What are some other popular movies by Mark O'Brien?
Other notable films include "Arrival", "Blue Bayou", and "Nuremberg".




