Daniel Peter O'Herlihy (May 1, 1919 – February 17, 2005) was an Irish film actor, known for such roles as Brigadier General Warren A. "Blackie" Black in Fail Safe, Marshal Ney in Waterloo, Conal Cochran in Halloween III: Season of the Witch, "The Old Man" in RoboCop, and Andrew Packard in Twin Peaks. He was nominated for the Academy Award for Best Actor for the 1954 film Adventures of Robinson Crusoe.