Warren Mears is a fictional character that is portrayed by Adam Busch in the American television series Buffy the Vampire Slayer.

"[1] Warren forms alliances with Andrew Wells, summoner of demons; and Jonathan Levinson, caster of spells.

The Trio strive to neutralize Buffy, the Slayer, and thus the primary obstacle to their ultimate goal of taking over Sunnydale.

[2] 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 activities to be the doings of demons) until halfway through the season.