A paranoid, secretive surveillance expert has a crisis of conscience when he suspects that the couple he is spying on will be murdered.
as Harry Caul
as Stan
as William P. 'Bernie' Moran
as Mark
as Ann
as Paul
as Meredith
as Amy Fredericks
as Martin Stett
as Receptionist
as The Mime
as Lurleen
as Man at Party (uncredited)
as Boy in Church (uncredited)
as The Director (uncredited)
as Confessional Priest / Security Guard (uncredited)
as Man in Yellow Hat (uncredited)