Glad to hear you're interested. :)

And good question. 

For the active characters, look at the OOC chara section. The ones still playing are as follows. 

Hazumi, Karnage, Alzir, Lazarus, Fenrir, Tokarin, Uriel and Gabriel? 
I'm not certai about Lucaris, Sonata and Aurelie.

Also the IC isn't very far in so fitting in shouldn't be a problem. Plus we're expecting some additional characters from existing players.