Barry Cassin was born on 23 November 1924 in Dublin, Ireland. He was an actor, known for The Count of Monte Cristo (2002), Byzantium (2012) and When Brendan Met Trudy (2000), in addition to his role as Cathbad in Mystic Knights of Tir na Nog. He died on 14 January 2017 in Balbriggan, County Fingal, Ireland.