2. Michonne's Walkers
Michonne's Walkers - known as her "pets" in some fan circles - were a very strange and striking concept. First seen in the final season two episode "Beside the Dying Fire", they were two Walkers (both black males, believed to be connected to her if the comics are anything to go by) whom she says "were never human" to begin with, giving the impression that they had scorned her in life in some way. She had cut off their arms and removed their lower jaws, rendering them relatively harmless but visually very intimidating, and she used them to ward off other Walkers - the smell making them leave her alone. Their presence gives her a totally bad-ass aura and show that she is not to be messed with. She essentially turned the tables, making two of the world's biggest current threat in to her unwilling allies. Michonne is forced to decapitate them both in the season three episode "Walk With Me", in an attempt to stay hidden from the Governor and Merle's group, as they were making too much noise.