Biography
Seamus O'Hara is a Northern Irish actor born on 25 June 1990 in Ballymena, County Antrim. He began his career with a role in the BBC Northern Ireland series 6Degrees and has appeared in television including Game of Thrones (2019) as Fergus, Line of Duty (2017), Shadow and Bone (2023) as Sergeant Halsov, Blue Lights (2023–) as Lee Thompson, Say Nothing (2024) as Mackers, and House of Guinness (2025) as Patrick Cochrane.
His film roles include The Northman (2022) as Audunn the Irish, Dungeons & Dragons: Honor Among Thieves (2023) as Presto, and In the Land of Saints and Sinners (2023) as Seamus McKenna. He is also known for his performance in the short film An Irish Goodbye (2022).
