Jack Reynor was born on 23 January, 1992, in Longmont, Colorado, to an Irish mother. He moved to County Wicklow, Ireland, when he was two, and was raised there. In early 2010, Jack was cast in Kirsten Sheridan's Dollhouse (2012) which debuted at Berlinale 2012. In late 2011 he played the title role in Lenny Abrahamson's highly acclaimed What Richard Did (2012). He resides in Ireland.