Drusilla.

About Drusilla

Drusilla, or Dru for short, is a fictional character on the television series Buffy the Vampire Slayer and Angel, portrayed by Juliet Landau. Created by Joss Whedon and David Greenwalt, she is introduced as a main antagonist alongside her lover Spike in the second season of Buffy. In addition to returning in subsequent seasons, the character is featured as a villain on the spin-off show Angel as well.