Re: Deletion of a character.
Yeah, putting them in Group Z wouldn't get them off the cast list. Doesn't matter which group they're in...I'm the only one in the game that can do anything with them, and I'm not going to run twenty-some-odd NPCs for every active player in the game. So, they sit there, idle...it's nice to have the names for reference, but I'd rather just have a clean cast list.
I originally wanted to rename them and give them to players as they came into the game (there haven't been many, which is good, because I don't enjoy GM'ing enough to put up with the intensity of several active players), but since they all belong to the game's owner, they don't even come up on my list of characters that I can alter, as a GM. I'd also like to be able to delete them to give a sense of attrition, because the game is about a small force trying to hold a location against a much larger, better equipped force...but nope. I may find some other option, yet...