Sean Mahon

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Sean Mahon
Born Dublin, Ireland
Nationality Irish
Occupation Actor
Years active 2002–present
Height 5' 11" (1,8 m)

Sean Mahon is an Irish stage and screen actor. He is known for playing Nicky Giblin in the Broadway production of The Seafarer, Richard Hannay in the Broadway production of The 39 Steps and Michael Hess (the lost son) in the award winning feature film, Philomena. In 2014 he was nominated for a best lead actor award for his portrayal of maverick cop Brian McGonigle in the Irish Drama Red Rock. After much success in Ireland, Red Rock now plays on the BBC in the UK and on Amazon Prime in the US.[1]



Year Title Role Notes
2002 It Could Happen Doctor short
2003 Hulk Comanche Pilot
2003 This Vicious Minute Husband short
2005 Mr. & Mrs. Smith Lucky
2005 A.M.D.G.: A World Is Not Enough Ignatius Loyola short
2007 Reign of the Gargoyles Major James Deacon TV movie
2008 Rend Thomas short
2010 Fair Game CIA Analyst #1
2010 Exit the Castle short
2011 Higher Ground Liam Donovan
2012 Dark Shadows Collinsport Cop
2012 Zero Dark Thirty Prince Pilot 52 uncredited
2013 Philomena Michael Hess
2015 The Legend of Longwood Marc Dumonceau Completed
2015 The Last Treasure Hunt Ernie Post-production
2016 "Anthropoid" Dr. Eduard


Year Title Role Notes
2002 Angel Truck Driver "Forgiving" (Season 3, Episode 17)
2002 The Agency Delaney "Elite Meat to Eat" (Season 2, Episode 11)
2003 Everwood Pseudo Patient "Blind Faith" (Season 2, Episode 6)
2003 ER Community Hospital Doctor "Death and Taxes" (Season 10, Episode 7)
2003-2004 Line of Fire Carl Sampson 4 episodes
2008 As the World Turns George Episode #1.13387
2008 Fringe Bartender "Safe" (Season 1, Episode 10)
2010 Army Wives Professor George Kelling "New Orders" (Season 4, Episode 9)
2010 Then We Got Help! Terry 20 episodes
2014-2015 Red Rock Brian McGonigle

Video games[edit]

Year Title Role Notes
2006 Call of Duty 3 Peterson


  1. ^ Rooney, David (6 December 2007). "Review: 'The Seafarer'". Variety. Retrieved 25 December 2014. 

External links[edit]