Liam O'Brien (born 11 January 1980) is an Irish actor, most notable for his three years playing Ethan Blake on ITV's long-running soap Emmerdale. Born in Limerick, Liam founded Bottom Dog Theatre Company in 2008 and continues to work as an actor in the UK and Ireland. He played Dean Martin for over two years in the West End tour of The Rat Pack: Live From Las Vegas in the UK, Europe and US. In the late Nineties and up to 2007 Liam worked and toured extensively with Limerick's Island Theatre Company with productions including Borrowed Robes, The Trickster, Our Town, The Taming of the Shrew, Mike Finn’s award winning Pigtown and lastly playing The Gentleman Caller in The Glass Menagerie. He also appeared in Amalgamotion Theatre Company’s Irish tour of Walking Away. Dublin Theatre roles inclu