
1990Born, Ballymena
24Credits
Seamus O'Hara (born 25 June 1990) is a Northern Irish actor.
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Known for
Game of ThronesFergus
The NorthmanAudunn the Irish
Dungeons & Dragons: Honor Among ThievesPresto
Shadow and BoneSergeant Halsov
In the Land of Saints and SinnersSeamus McKenna2026The State of UsFrankMovie
2025Mourning GloryNiallMovie
2025NostalgieSteakMovie
2025House of GuinnessPatrick Cochrane · 8 episodesShow
2025Sherlock & DaughterO'Leary · 1 episodeShow
2024Three KeeningsMovie
2024Say NothingMackers · 6 episodesShow
2023In the Land of Saints and SinnersSeamus McKennaMovie
2023Dungeons & Dragons: Honor Among ThievesPrestoMovie
2022The NorthmanAudunn the IrishMovie
2022MandrakeThomasMovie
2022An Irish GoodbyeTurloughMovie
2021Hope StreetEddie McNulty · 1 episodeShow
2021Just JohnnyStephenMovie
2021Shadow and BoneSergeant Halsov · 1 episodeShow
2018Agatha and the Truth of MurderPC SpencerMovie
2018National Theatre Collection: TranslationsManusMovie
2018ZooSoldierMovie
2015DustMovie
2012Line of DutyArresting PC · 1 episodeShow
2009StorylandIvan · 1 episodeShow
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