Jack Reynor was born on the 23rd of January, 1992, in Colorado, while his Irish mother, Tara (Reynor) O'Grady, was living there. He moved to Humphrystown, Co. Wicklow, Ireland, when he was two. His love of acting began on the set of 'Country' directed by Kevin Liddy, in 1999. Between 2004 and 2010 he attended Belvedere College SJ in Dublin, where he performed on stage in numerous productions. In early 2010 Jack was cast in Kirsten Sheridan's 'Dollhouse' which debuted at Berlinale 2012. In late 2