It is indeed Greek, yes. The original idea began as Celtic mythology and was changed shortly after some of the FAQ was written. I thought I had it all weeded out but apparently I did not, thank you for mentioning it.

As far as old souls go and who and who isn't appropriate, if they were mentioned in Mythology and have some sort of given information, they can be played here. There are gods (minor as they might be) that have very little information and we are not excluding those from play and the same stands for reincarnations!