Cast & creator
Lochlann Ó Mearáin
Best known for Vikings, Outlander, The Tudors
Also known as: Lochlainn O'Mearáin, Lochlann O'Mearáin
Movies
20
film credits
Series
15
television credits
Career
35
1998–2026 · acting roles
Credit score
6.4
average across scored titles
Signature credits
Known for
Across film & television
Filmography (35)
Showing 35 of 35 credits
Series
★ 8.1
Vikings
First Noble
2013
Series
★ 8.2
Outlander
Horrocks
2014
Series
★ 7.8
The Tudors
Messenger
2007
Series
★ 7.5
Genius
Georg Nikolai
2017
Movie
★ 6.3
King Arthur
Roman Commander
2004
Series
★ 6.5
My Hero
Non-smoking Patient
2000
Series
★ 7.1
The Head
Sean
2020
Series
★ 6.3
Smother
Rory Dwyer
2021
Series
★ 6.7
Small Town, Big Story
Handsome Boyle Man
2025
Series
★ 7.2
The Mystic Knights of Tir Na Nog
Rohan
1998
Movie
★ 6.0
Love & Friendship
Lord Manwaring
2016
Series
★ 6.1
The Dreamer: Becoming Karen Blixen
Denys
2022
Series
★ 4.9
Mr Loverman
Reuben Dempsey
2024
Series
★ 5.5
Women on the Verge
Rory
2018
Movie
★ 6.0
Pilgrimage
Lopsided
2017
Series
★ 4.2
Borderline
Jack Mullen
2024
Series
★ 6.2
Holding
as Cormac Byrne
2022
Movie
★ 5.8
Rose Plays Julie
Farmhand
2021
Movie
★ 5.9
Joyride
James
2022
Series
★ 5.0
Finding Joy
Aidan
2018M
Movie
★ 10.0
Mother
2018
Movie
★ 5.2
Supervized
Kevin
2019
Movie
Newtown Boys
Jarlath
2026
Movie
★ 5.7
Holy Water
Donal O'Connell
2009
Movie
★ 7.0
Mystic Knights of Tir Na Nog
Rohan
1999
Movie
★ 6.2
Rosie
Rick
2019
Movie
★ 3.0
Ocean Deep
Rory Murphy
2023
Movie
★ 5.0
Poison Pen
PC Molloy
2014T
Movie
The Longest Ditch
Pat O'Callaghan
2004
Movie
★ 5.0
Inspektor Jury spielt Katz und Maus
Dr. Fleming
2016
Movie
★ 4.8
The O'Briens
Brendan Blake
2013
Movie
★ 9.0
A Terrible Beauty
Piaras Béaslaí
2013
Movie
★ 10.0
Shut Your Mouth
2026
Movie
The Bridge
Cormac
2019N
Movie