Damien Karras

Father Damien "Demis" Karras, SJ, is a fictional character from the 1971 novel The Exorcist, its 1983 sequel Legion, one of the main protagonists in the 1973 film The Exorcist, and a supporting character in The Exorcist III, the 1990 film adaptation of Legion. He is portrayed by American playwright and stage actor Jason Miller.