I don't know. There's one black character in the main group... wait, there were two, but the lady (don't remember her name) died, before she really could get any development.
So there's T-Dog... whose only real moment of characterization is lamenting the fact that he is the only black guy in the group (no one can accuse him of not being genre savvy). No backstory. No family. Nothing.
T-Dog, spends the next two seasons in the back, not doing anything of note. Practically an extra. Then he dies rather unceremoniously (his death is a minor footnote to Lori's).
Well, now we got a new black guy, let's see what they do with him.