Yesterday, a new piece of promo artwork debuted touting The Walking Dead's presence at San Diego Comic-Con 2012. Today we have another promo banner, showcasing Andrew Lincoln and new characters Michonne (Danai Gurira) and The Governor (David Morrissey). Oddly enough, though, there is also a glimpse of a helicopter, which may be a tease for some intriguing developments in Season 3. Take a look at the artwork, and read on for more details on the highly-anticipated season from showrunner Glen Mazzara.

The executive producer first spoke about the opening moments of Season 3, where it seems that all hope may be lost for our favorite survivors.

"The entire landscape has fallen to zombies. The entire world has collapsed, the apocalypse has taken over, the zombies have taken over, there's no safe place. And I think in the past our characters thought they could find some safe harbor, and now there's just no good hiding place at all."

Glen Mazzara also spoke about the new addition of Danai Gurira as Michonne, and how the character is a tad bit different than how she was portrayed in Robert Kirkman's comic books.

"Just like in the comic books, she is a badass and she hates the walkers more than anything else. She treats them with contempt. What's interesting about the version of this character is she has a lot of trouble fitting into human society. She's probably better off staying out there alone with the walkers. She'll be very interesting and a complicated character to bring into the fold, if we even do that. She gives us a lot to play with."

The showrunner also talked about this season's other highly-anticipated new addition, The Governor, played by David Morrissey.

"David is an incredibly talented actor with a lot of magnetism, and we need somebody who can serve as the foundation, the pillar, for an entire storyline, an entire world of Woodbury. David has the strength to do that. I also think that David's approach to the character was spot on. He understands that this is an interesting, complex, multilayered, dark figure, and he's very interested in playing that."

The Walking Dead Season 3 will debut in October on AMC. The Walking Dead cast members and executive producers will be on hand at San Diego Comic-Con 2012 with a panel and Q&A session Friday, July 13 at 1:25 PM in Hall H. Be sure to check back next week for all The Walking Dead scoops revealed at the Con.