Scott Gimple, the showrunner for The Walking Dead tv show on AMC, talked season 4 with DailyDead.com during Comic-Con and had some interesting responses. Make sure to read the entire article via the link below.

Can you tell me about your approach when it comes to adapting the comic book series material to fit in with the changes from the TV series?
Scott M. Gimple: We’re at a point now where it has to change. We have characters that are not alive in the show, but still alive in the book and we have characters that never appeared in the book. There’s so much in the book, including stuff we passed in the timeline, that I thought was awesome. I really wanted to get back to it.

We’re using big moments from the comic in different ways, with different characters, and in different context. We’re using the novels as well. It’s been a lot of fun to fulfill our theme and characters in different ways, but I know that our fans will completely recognize them and I can think of a couple of moments in the trailer that people will see.

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Scott M. Gimple: We have another character we haven’t talked much about, Zach, played by Kyle Gallner. He has a romantic relationship with one of the characters. He’s not a major new character, but you get to know about him real quick.
Source: DailyDead.com