Niall O'Brien: Niall O'Brien. Actor: Excalibur. Niall O'Brien was born on 8 February 1946 in Dublin, Ireland. He was an actor, known for Excalibur (1981), Gorky Park (1983) and Braveheart (1995). He died on 25 February 2009 in Ireland.
Known For: Excalibur (Kay), Gorky Park (KGB Agent Rurik), Braveheart (English General), The Legend of 1900 (Capo del porto)