The possibly demonic, and definitely evil, Donnie Pfaster (Nick Chinlund), last seen in Irresistible, returns in Orison. Written by Chip Johannessen who had served as showrunner for Millennium’s final season, this episode debuted on 9 January, 2000. Pfaster, serving life in prison, somehow seems to magically walk out of a maximum security instituion, and Mulder…