Windom Earle is the secondary antagonist of the original run of the 1991 television series Twin Peaks.
He is a high-ranking FBI agent-turned-serial killer who leaves his victims posed in elaborate, mysterious tableaus. His killing spree was originally stylized as a chess game with his former partner, Agent Dale Cooper, with each victim being a lost figure of Cooper's in a play, it was later revealed to mostly being a facade for his real actions regarding The Black Lodge. Windom Earle usually stabs his victims in the aorta but also kills people with crossbows and complicated traps.
He was portrayed by the late Kenneth Welsh, who also played Dr. Richard Powell in The Void.