Necromancer

An Eastern European girl barely in her teens (apparently), the Necromancer, as her name suggests, can resurrect and control the dead, as well as using their energies for a variety of effects.  Quite cold and ruthless, what her ultimate goals or allegiance will be are unknown...

The Necromancer first appeared in a dream in which she appeared to be a captive of a group of zombies - until it turned out she was their master.