The Trio is a group of three fictional characters in the sixth season of Buffy the Vampire Slayer, who serve as the villains of the season. They continually strive to neutralize Buffy, the Slayer, and thus the primary obstacle to their ultimate goal of taking over Sunnydale. Though initially comic relief and little more than a nuisance to the Scooby Gang, they take a darker turn by the episode "Dead Things". Most of their schemes combine science and mysticism, and they are able to avoid detection by the Scoobies (who merely assume their conducts to be the doings of demons) until halfway through the season.