Biography: Gavan O'Herlihy (6' 2½" | 1.89 m) an Irish actor, was born on April 29, 1954 (Taurus) in Dublin, Ireland, the son of Elsa Bennett and Irish actor Dan O'Herlihy. He has a Brother, Cormac O'Herlihy and a sister, Patricia O'Herlihy. He is the brother-in-law of Cornelia Hayes O'Herlihy, nephew...