Arthur O'Sullivan was a prolific actor who created a name for himself largely on the big screen. O'Sullivan began his career with roles in the Patrick McGoohan dramatic adaptation "The Quare Fellow" (1962) and the dramatic adaptation "Girl With Green Eyes" (1964) with Peter Finch. Later, O'Sullivan acted in the Robert Mitchum drama "Ryan's Daughter" (1970), "A War of Children" (CBS, 1972-73) and "Barry Lyndon" (1975). Later in his career, O'Sullivan acted in "On a Paving Stone Mounted" (1978).