7. Andrea
One of the most hated characters in The Walking Dead has to be Andrea. In the comic she is a complete badass who developed her skills and became the groups best shooter. Give her a sniper rifle and she wont let you down. In the TV show, there was an initial suggestion that she might go down the same road as her comic book counterpart but instead, she became the groups resident winger. Admittedly, there is a lot to complain about if you are stuck in a post-apocalyptic world where the undead are trying to eat you, but Andrea took complaining to a new level. And considering she worked in the law profession, she wasn't very smart. She couldn't see what was glaringly obvious to the audience. She didnt figure out that Shane was a scumbag until it was too late, she let herself get manipulated by the Governor when it was totally obvious that the guy was a psychopath. Even when Michonne, the woman who nursed her back to health, tried to warn her about the Governor, she ignored it and took everything he said at face value. Too needy and dim to be likeable, you wish that Dale hadn't talked her out of killing herself in the CDC because then we didn't have to put up with scene after scene where she moaned about not having access to a gun.