Da is a 1988 film directed by Matt Clark and starring, among others, notable American actors Martin Sheen and Barnard Hughes. It is a screenplay of the original stage-play of the same name, by Irish playwright and journalist Hugh Leonard.
"Da" is a Tony-winning comedy by Irish playwright Hugh Leonard. The play is largely autobiographical, and its protagonist, an expatriate writer named Charlie, represents Leonard himself. The play deals largely with Charlie's relationships with the two father figures in his life: "Da" (an old-fashioned Irish nickname meaning "Daddy" or "Papa"), his adoptive father, and Drumm, a cynical civil servant who becomes his mentor.