While I had my head well and truely stuck in other places on the net, I happened to check the Telltale News section. Looks like they have started with voice actors now. Take a look

http://www.telltalegames.com/news/?permalink=A6962CA1744285DFA9881317CD8929BA.txt&sm m=y

and heres where all the pictures are ...

http://www.xnewmedia.com/events/photogallery.html