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IMDbPro

Sean Mahon(I)

  • Actor
  • Additional Crew
IMDbProStarmeterSee rank
Sean Mahon
Watch Reel/ Scene Collection
Play demo reel5:43
Reel/ Scene Collection
4 Videos
33 Photos
Born and raised in Dublin, Sean moved to the US when he was 24. He trained to be an actor at The Center Theater, Meisner based school in Chicago and started his career on the Chicago stage. He has lived and worked professionally in Chicago, Los Angeles, New York, London and Dublin.

His stage credits include (Tony nominated) Broadway productions of The Seafarer (Nicky Giblin); The 39 Steps (Richard Hannay) and US regional productions of Midsummer Night's Dream (Demetrius) at the La Jolla Playhouse and Stones in his Pockets (Jake) at The Mark Taper Forum.

He has been nominated twice, by the Irish Film and Television Academy for best lead actor for his turn as maverick cop, Brian McGonigle in the television series Red Rock (Amazon Prime, BBC UK). He was further nominated for Best Lead Actor at the Richard Harris International Film Festival for his role as corrupt Politician, Derek Keenan in the family drama, The Edge of Chaos.

He has worked with some of the industry's top directors, Stephen Frears, Ang Lee, Tim Burton, Kathryn Bigelow, Doug Liman, Rod Lurie, Conor McPherson, Maria Aitken and alongside top acting talent, Judi Dench, Cillian Murphy, Vera Farmiga, Marisa Tomei, Jamie, Dornan, John Hawkes.

His other professional interests include voice narration and coaching other actors.

Sean is married and lives in Brooklyn NY.
  • More at IMDbPro
    • Contact info
    • Agent info
    • Resume
IMDbProStarmeterSee rank
  • View contact info at IMDbPro
    • Awards
      • 2 nominations total

    Photos33

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    Known for

    Anthropoid (2016)
    Anthropoid
    7.2
    • Dr. Eduard
    • 2016
    Brad Pitt and Angelina Jolie in Mr. & Mrs. Smith (2005)
    Mr. & Mrs. Smith
    6.5
    • Lucky - Dive Bar Patron #5
    • 2005
    Judi Dench and Steve Coogan in Philomena (2013)
    Philomena
    7.6
    • Michael
    • 2013
    Red Rock (2015)
    Red Rock
    7.5
    TV Series
    • Garda Sergeant Brian McGonigle
    • Brian McGonigle

    Credits

    Edit
    IMDbPro

    Actor



    • Truth & Treason
      • Hugo Hübener
      • Post-production
      • 2025



    • Jeremy Sisto, Alana De La Garza, Missy Peregrym, John Boyd, and Zeeko Zaki in FBI (2018)
      FBI
      7.1
      TV Series
      • Vaughn Pulver (as Seán Mahon)
      • 2025
    • Nobody Wants to Shoot a Woman (2024)
      Nobody Wants to Shoot a Woman
      7.5
      • Detective Smith
      • 2024
    • Marco Pigossi in High Tide (2024)
      High Tide
      6.7
      • Bob
      • 2024
    • Creep Box (2023)
      Creep Box
      4.7
      • Devon
      • 2023
    • Creep Box (2022)
      Creep Box
      6.1
      Short
      • Devon
      • 2022
    • The Cursed (2021)
      The Cursed
      6.2
      • John Adam
      • 2021
    • Aoibhinn McGinnity in The Edge of Chaos (2020)
      The Edge of Chaos
      7.8
      • Derek Keenan
      • 2020
    • End of Sentence (2019)
      End of Sentence
      6.6
      • Andrew
      • 2019
    • EastEnders (1985)
      EastEnders
      4.8
      TV Series
      • Ray Kelly
      • 2018–2019
    • EastEnders: The Podcast (2018)
      EastEnders: The Podcast
      Podcast Series
      • Ray (voice)
      • 2018
    • Stephen Dorff and Melissa George in Don't Go (2018)
      Don't Go
      5.2
      • Dave Pearce
      • 2018
    • Red Rock (2015)
      Red Rock
      7.5
      TV Series
      • Brian McGonigle
      • Garda Sergeant Brian McGonigle
      • 2015–2016
    • Anthropoid (2016)
      Anthropoid
      7.2
      • Dr. Eduard
      • 2016
    • The Last Treasure Hunt (2016)
      The Last Treasure Hunt
      4.4
      • Ernie
      • 2016
    • David Ogden Stiers, David McCullough, and Michael Murphy in American Experience (1988)
      American Experience
      8.6
      TV Series
      • Roscoe Conkling
      • 2016

    Additional Crew



    • The Seeker: The Dark Is Rising (2007)
      The Seeker: The Dark Is Rising
      4.8
      • adr loop group
      • 2007

    Videos4

    Reel/ Scene Collection
    Demo Reel 5:43
    Reel/ Scene Collection
    Anthropoid
    Clip 1:19
    Anthropoid
    Anthropoid
    Clip 1:19
    Anthropoid
    Trailer
    Trailer 2:03
    Trailer
    The Last Treasure Hunt
    Trailer 2:11
    The Last Treasure Hunt

    Personal details

    Edit
    • Official site
      • Official Agent Website
    • Alternative name
      • Seán Mahon
    • Height
      • 5′ 11″ (1.80 m)
    • Other works
      Played Nicky Giblin in "The Seafarer" play by Conor McPherson (Booth Theatre, New York City, New York, USA).

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