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IMDbPro

Mark P. O'Connor

  • Actor
  • Director
  • Writer
IMDbProStarmeterSee rank
2025 Studio Session
Excerpts from: 'Pints' - 2023 'I am Patrick' - 2020 'Am an Gháthair' - 2012 'Murder in G Major' - 2023
Play demo reel3:07
Mark P O'Connor Showreel 2024
2 Videos
17 Photos
Mark P O'Connor appears in Sherlock and Daughter(CW), A Knight of the Seven Kingdoms (HBO) and The Rainmaker (CBS). He is from Limerick, Ireland, home of Richard Harris, The Cranberries and Munster Rugby. A classically trained, multi-instrumentalist musician, he began acting in 2010. Stage highlights include: Fr Flynn - 'Doubt: A parable', The Knave - '2 Gentlemen of Lebowski', Martin - 'Through a glass darkly', Laurence Sugden - 'Calender Girls', Stewart/Len/Roy 'Blackrock', Christy 'Lieutenant of Inismore'

Screen highlights include: TV - 'Am an Ghátair' TG4, 'Game of Thrones S8' HBO, 'Foundation' Apple, 'Conversations with friends' BBC3, 'Sherlock and Daughter' CW, 'A Knight of the Seven Kingdoms' HBO. Feature Films - Calm with horses, I am Patrick, The Northman, Clueless in Ireland, Murder in G Major.

He wrote, acted in and directed the short film 'Pints' winner of the 'Best Narrative Short' at Red Cedar Film Festival 2023. He directed and performed piano in 'Conversation' with danseuse Roxy Regine Theobald and DOP Mohsin Khan, winner of the Filmtrack 'Best Music' award.
  • More at IMDbPro
    • Contact info
    • Agent info
    • Resume
IMDbProStarmeterSee rank
  • View contact info at IMDbPro
  • Photos17

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    Known for

    P.J. Byrne, Lana Parrilla, John Slattery, Milo Callaghan, and Madison Iseman in The Rainmaker (2025)
    The Rainmaker
    6.6
    TV Series
    • Schmuck #2
    David Thewlis and Blu Hunt in Sherlock & Daughter (2025)
    Sherlock & Daughter
    7.0
    TV Series
    • Arthur
    • Henry
    Tamera Mowry-Housley, Risteard Cooper, and Marco Grazzini in Haunted Harmony Mysteries: Murder in G Major (2023)
    Haunted Harmony Mysteries: Murder in G Major
    7.0
    TV Movie
    • Session singer
    • guitarist(uncredited)
    • 2023
    Learning to Breathe Under Water
    Learning to Breathe Under Water
    • Artist(uncredited)

      Credits

      Edit
      IMDbPro

      Actor



      • Learning to Breathe Under Water
        • Artist (uncredited)
        • Post-production



      • P.J. Byrne, Lana Parrilla, John Slattery, Milo Callaghan, and Madison Iseman in The Rainmaker (2025)
        The Rainmaker
        6.6
        TV Series
        • Schmuck #2
        • 2025
      • David Thewlis and Blu Hunt in Sherlock & Daughter (2025)
        Sherlock & Daughter
        7.0
        TV Series
        • Henry
        • Arthur
        • 2025
      • Tamera Mowry-Housley, Risteard Cooper, and Marco Grazzini in Haunted Harmony Mysteries: Murder in G Major (2023)
        Haunted Harmony Mysteries: Murder in G Major
        7.0
        TV Movie
        • Session singer
        • guitarist (uncredited)
        • 2023
      • Mark P. O'Connor and Nigel Shinnors in Pints (2023)
        Pints
        Short
        • Red
        • 2023
      • Alison Oliver, Jemima Kirke, Joe Alwyn, and Sasha Lane in Conversations with Friends (2022)
        Conversations with Friends
        6.8
        TV Series
        • Frederick St Walker (uncredited)
        • 2022
      • Ethan Hawke, Nicole Kidman, Willem Dafoe, Björk, Alexander Skarsgård, Claes Bang, and Anya Taylor-Joy in The Northman (2022)
        The Northman
        7.0
        • Villager (uncredited)
        • 2022
      • Sprachlos in Irland (2022)
        Sprachlos in Irland
        5.9
        TV Movie
        • Tough guy #2
        • 2022
      • The Yellow Wallpaper (2021)
        The Yellow Wallpaper
        4.4
        • James (as Mark O'Connor)
        • 2021
      • John Rhys-Davies in I Am Patrick: The Patron Saint of Ireland (2020)
        I Am Patrick: The Patron Saint of Ireland
        6.0
        • Virgin's Father
        • 2020
      • Cosmo Jarvis and Barry Keoghan in Calm with Horses (2019)
        Calm with Horses
        6.8
        • Bar fly (uncredited)
        • 2019
      • Game of Thrones (2011)
        Game of Thrones
        9.2
        TV Series
        • Northern Bannerman (uncredited)
        • 2019
      • Jimi: All Is by My Side (2013)
        Jimi: All Is by My Side
        5.7
        • Hippy (uncredited)
        • 2013

      Director



      • Mark P. O'Connor and Nigel Shinnors in Pints (2023)
        Pints
        Short
        • Director
        • 2023

      Writer



      • Mark P. O'Connor and Nigel Shinnors in Pints (2023)
        Pints
        Short
        • Writer
        • 2023

      Videos2

      Mark P O'Connor Showreel 2024
      Demo Reel 3:07
      Mark P O'Connor Showreel 2024
      Mark P O'Connor Music Showreel 2025
      Demo Reel 2:32
      Mark P O'Connor Music Showreel 2025
      Mark P O'Connor Music Showreel 2025
      Demo Reel 2:32
      Mark P O'Connor Music Showreel 2025

      Personal details

      Edit
      • Official sites
        • My Bandcamp Music Page
        • My LinkedIn Profile
      • Alternative name
        • Mark O'Connor
      • Height
        • 6′ (1.83 m)

      Self-verified on IMDbPro

      • Gender / Gender identity
        • Male
      • Race / Ethnicity
        • White
      • Nationality / Religious or Ethnic identity
        • Irish

      Did you know

      Edit
      • Trivia
        Mark first appeared onstage as a toy soldier in the 1979 Salesians School Xmas play.

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