I have no idea how valid Bigshinyrobot's sources are but they seem pretty confident that the following 3 chaps could well be in the running for Rick and 2 of them are great choices I think.
This is what they have to say:
Big Shiny Robot! has talked to a few different sources about names that are in the ring for the series and we’re pretty happy. There are a couple of sources we talked to with varying reliability, but these names all made a lot of sense, so we want to throw these out there and get the conversation going.
They say their most reliable source points them to Jamie Bamber who you may recognize as Lee "Appolo" Adama from Battelstar Galactica.
Next is Mark Pelligrino who plays Jacob on
Lost and has also appeared in
Dexter
Finally we have Stuart Townsend, the man who was almost Aragorn and almost Fandrall..but who you may know best as ..emm, ..oh yeah he made a pathetic attempt at playing Lestat in
Queen Of The Damned and the worst thing in
League Of Extraordinary Gentlemen(Which is saying something)..I really hope he gets the part!!
I have only recently begun reading this awesome comic thanks to some of you guys recommendations and I am very glad I did. I haven't seen everything Mr Grimes has to offer yet obviously, but out of these choices I'm leaning towards Pelligrino. What do you think Zombie fans?