This is a bit late, but I have made a
characters page with small pics of 49 characters, a little info about each one, and a link to info about their seiyuu. Despite having now watched the TV series up to ep 21, I am already finding the page useful for keeping people straight, especially on the Gamilas side.
If you want more info about each character, there is a page that translates all the character info from the official site
here.
I have plenty of problems with this show -- starting with the ridiculous shape of the
Yamato and going on through the captain's one-note strategy and the way the show hypes Japanese militarism -- but I have enjoyed every minute of the run. A lot of things go by too quickly, but it all has worked for me.