Jason Miller was an American playwright and actor. He won the 1973 Pulitzer Prize for Drama and Tony Award for Best Play for his play That Championship Season, and was nominated for the Academy Award for Best Supporting Actor for his performance as Father Damien Karras in the 1973 horror film The Exorcist, a role he reprised in The Exorcist III. He later became artistic director of the Scranton Public Theatre in Scranton, Pennsylvania, where That Championship Season was set.

The Exorcist is a 1973 American supernatural horror film directed by William Friedkin from a screenplay by William Peter Blatty, based on his 1971 novel. The film stars Ellen Burstyn, Max von Sydow, Jason Miller, and Linda Blair, and follows the demonic possession of a young girl and her mother's attempt to rescue her through an exorcism by two Catholic priests.