Quoted from LesManley:
I would hope that they go towards a sound a like or better yet actual actor from the show. I overheard 3 casual players last night commenting last night during their game on route about how it sucks that a Walking Dead pin has no characters or voices from the show in it. It's not just hardcore pinside people, casual players don't understand it either.
My wife and I found them to be hilarious. I think the southern accent is a must. The show is based in Georgia. I get it, they are corny, but I definitely don't think they are as repulsive as others say they are. I heard how horrible it was for weeks before I got to play one. Just glad it's not as bad as I thought I guess.