Actor. He was best known for playing the character roles of priests, soldiers, cadet leaders, lookouts, communications men, radio operators, pilots, corporals, knights, waiters, cadets, reverends, gas station attendants, sergeants, foragers, students, lords, proprietors, troopers, officers, party guests, airport workers, hotel clerks, policemen, lieutenant executive officers, and churchgoers, usually in military films and western film, and classic television westerns, but some roles were usually uncredited. He will be best remembered for playing the role of 'Sean' in the classic adventure family fantasy film, "Darby O'Gill And The Little People" (1959). The film which was directed by Robert Stevenson, which was written for the screen by Lawrence Edward Watkin and H. T. Kavanagh, and which also starred Albert Sharpe, Janet Munro, Sean Connery, Jimmy O'Dea, Kieron Moore, and Dennis O'Dea, tells the story of a wily old codger who matches wits with the King of the Leprechauns and helps play matchmaker for his daughter and the strapping lad who has replaced him as caretaker. He is also best remembered for playing the role of 'Art Catlin' in the episode entitled, "To See, Perchance To Dream," of the classic action-adventure crime television series, "Hawaiian Eye," which originally aired December 4, 1962, and which also starred Troy Donahue, Robert Conrad, and Connie Stevens. He was born as James Lilburn Fitzsimons one of six children to Charles Stewart Parnell Fitzsimons (1885-1972), and his wife Marguerite Lilburn Fitzsimons (1898-1962), in Dublin, Ireland, on September 11, 1927. His siblings included Margaret Mary Fitzsimons (1919-2013), Maureen Fitzsimons (1920-2015), Florence Fitzsimons Clarke (1922-2001), Charles Bernard Fitzsimons (1924-2001), and Margot Fitzsimons Edwards (1926-2014). His siblings including Charles, and Margot, all became successful in their own rights working as an actor, actress, or producer, and his sister Maureen became the famous actress Maureen O'Hara who he appeared with on film. He made his acting debut playing the role of 'Father Paul' in the classic comedy romantic film drama, "The Quiet Man" (1952). The film which was directed and written for the screen by John Ford, which was also written for the screen by Frank S. Nugent and Maurice Walsh, and which also stars John Wayne, Maureen O'Hara, Barry Fitzgerald, Ward Bond, Victor McLaglen, and Mildred Natwick, tells the story of a retired American boxer returns to the village of his birth in 1920s Ireland, where he falls for a spirited redhead whose brother is contemptuous of their union. Besides, playing the role of 'Father Paul' in the classic comedy romantic film drama, "The Quiet Man" (1952), and playing the role of 'Sean' in the the classic adventure family fantasy film, "Darby O'Gill And The Little People" (1959), his many other film credits include, "What Price Glory" (1952), "San Antone" (1952), "The Sun Shine Bright" (1953), "Titanic" (1953), "The Desert Rats" (1953), "Sea Of Lost Ships" (1953), "Flight Nurse" (1953), "Jubilee Trail" (1954), "King Richard And The Crusaders" (1954), "Suddenly" (1954), "Malaga" (1954), "Hell's Outpost" (1954), "The Long Gray Line" (1955), "The Sea Chase" (1955), "Fort Yuma" (1955), "The Desperate Hours" (1955), "At Gunpoint" (1955), "Battle Stations" (1956), "Mohawk" (1956), "Friendly Persuasion" (1956), "The Deadly Companions" (1961), "Spencer's Mountain" (1963), "Kisses For My President" (1964), "Cheyenne Autumn" (1964), "My Fair Lady" (1964), "Brainstorm" (1965), "The Rare Breed" (1966), "Batman: The Movie" (1966), "Death Of A Gunfighter" (1969), and "Raid On Rommel" (1971). Besides, playing the role of 'Art Catlin' in the episode entitled, "To See, Perchance To Dream," of the classic action-adventure crime television series, "Hawaiian Eye," which originally aired December 4, 1962, and which also starred Troy Donahue, Robert Conrad, and Connie Stevens, his many other television credits include, "Hollywood Opening Night," "Death Valley Days," "The Star And The Story," "Lux Video Theatre," "Cavalcade Of America," "Matinee Theatre," "The DuPont Show Of The Month," "Maverick," "Perry Mason," "Route 66," "Daniel Boone," "Gunsmoke," "Batman," "Gomer Pyle: USMC," "The Immortal," and "Nancy And The Professor." His last film role was playing 'Man in Church' in the classic horror thriller film drama, "Driller Killer" (1979). The film which was directed by Abel Ferrara, which was written for the screen by Nicholas St. John, and which also starred Carolyn Marz, Harry Schultz, Alan Wynroth, and Stephen Singer, tells the story of an artist who slowly goes insane while struggling to pay his bills, work on his paintings, and care for his two female roommates, which leads him taking to the streets of New York after dark and randomly killing derelicts with a power drill. He retired from acting shortly thereafter. During his acting career, he also used the names James Lilburn, James Lilborn, Jim Lilburn, Jim O'Hara, and Jimmy O'Hara. He passed away in Glendale, California, on December 3, 1992, at the age of 65. Following his death, he was cremated and his ashes were given to his surviving family members. He was the uncle of the actress Bronwyn Fitzsimons (1944-2016), and the actor Charles F. Fitzsimons who was born on September 30, 1962. He was also the granduncle of the actor C. Beau Fitzsimons who played the role of a valet in the comedy film, "Mrs. Doubtfire" (1993), which starred Robin Williams (1951-2014).