Season 3, Episode 4 The Dunwych Madness

First Aired: November 1, 2000

When an Oregon village is gripped by mass insanity, Parker backsteps to find the source of the dementia, which Mentnor suspects is linked to biological-warfare experiments he conducted in the 1940s. Mentnor: Norman Lloyd. Owsley: Kevin Christy. Koop: Eric Pierpoint. Ballard: Sam Whipple. Clemons: Kevin McNulty.