I will say, this is not a series where you can watch an episode here and there. If you try to skip the early seasons, you will be scratching your head and wondering why X is like that. Weren't they Good/Bad/A Dick with wings?
Still, unlike some Horror/Supernatural fandoms, this one is warm and welcoming. Unless you have done a sin (plagiarism, falsely accuse someone, try to kink shame, dissed on mental health issues) then they will turn on you; likely send a rabid bat to bite you, and laugh as you get shots to counter the rabies.
The icons are in no certain order.
I missed so many awesome characters. The Four Horsemen (I admit to liking Death the best), Missouri, The Leviathans, The Men of Letters, More demon than you can count, Witches, Warlocks, Special Children, Dicks with wings… I mean Angels, and the list can go on for a very long time.