5. Allen & Ben
The eventual introduction of Tyreese was something most fans of the comic were looking forward to. So far, he hasn't disappointed and is a far more interesting character than T-Dog ever was. And tagging along with him were two guys who were so annoying that you wonder what possessed the writers to give the show more dead wood. Allen and Ben were father and son. After an initial moment where Allen protested about Ben having to witness his mother being killed so she didn't turn into a zombie, he soon became a villain you expect to see in a TV movie. He wanted to take over the prison, he then joined up with the Governor and attacked the prison, and his reward was a bullet to the head. He was so underdeveloped that you didn't care and most of the time struggled to even remember his name. As for his son, he was such a wet weekend of a character; I doubt anyone remembers anything he did in the show. Both were more characters that you ended up shrugging you shoulders at when they died.