Walking Dead: Production photos from Season 3

AMC has shared a few season three production photos from the set of The Walking Dead (potential spoiler with the last photo below so don't scroll down if you don't want to confirm what you already know is inevitable).

We've got Rick Grimes (Andrew Lincoln), of course, looking like he's finally getting serious about disciplining Carl:

We've also got Michonne (Danai Gurira) in what we can only assume is her first reaction to meeting Laurie:

Here's The Governor (David Morrisey):

And back from the dead, it's the one and only Merle 'Lefty' Dixon (Michael Rooker):