
Acting
Jason Miller (born John Anthony Miller Jr.; April 22, 1939 – May 13, 2001) 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 (1990). He later became artistic director of the Scranton Public Theatre in Scranton, Pennsylvania, where That Championship Season was set.
Mineshaft: The Cruising Murders
as Self (archive footage)

Legacy of Screams: The Evolution of Horror Movies
as Self - (archive footage)

Finding Home
as Lester Brownlow

The Joe Spinell Story
as Self

The Eternal
as The Doctor

The Fear of God: 25 Years of The Exorcist
as Self - Father Karras
Murdered Innocence
as Det. Rollins

Mommy
as Lt. March

Rudy
as Coach Ara Parseghian

Small Kill
as Mikie
Light of Day
1987