Credit: John P. Johnson/HBO © 2012 Home Box Office Photo: Kristin Bauer van Straten as Pam on True Blood

Don’t Trust the B’s on this list! Whether good or evil, the women on this list all use treachery, cut-downs, and death glares to get what they want and to rule supreme over lesser minions.

In celebration of this, the most spookiest of months, we ask, which of these mean girls would you least want to meet in a dark alley? Who would you not be caught dead crossing?