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Seán Óg Cairns is a 27-year-old Irish actor who grew up in Dundalk, Co. Louth. He first burst into the scene as a dancer under the Dundalk Musical Society in January 2013, where he went on stage for Pantomime, Snow White, and the Seven Dwarves, in An Táin Theatre, Dundalk. Seán Óg's first leading role came when he was cast as Ronnie Winslow in Dundalk Theatre Workshop's The Winslow Boy. After the 2013-2014 runs of the An Táin Theatre, Seán Óg managed to earn his first two awards: Best Young Actor and Most Dramatic Scene / Best Moment of Theatre. Being an extra in Pierce Brosnan's 2015 I.T. was his first on-screen credit name as one of the extras, and later on, he became a featured extra actor in BBC's Ripper Street.