Bizarrely, in season 7 Spike's accent improved because James Marsters was at the SFX Event in Blackpool with 3000 Buffy fans moaning at him that his accent was rubbish. So for season 7 it was vastly better, at least until he was in Angel and some idiot vocal coach ruined all our hard work. :P

The hat is not a character. :P AND NOR IS SAM! Though some of the random weirdness Derek picked up on at times might as well be (see icon).

I might go back and give you a fandom on your own entry, actually, though it'll have to wait until tonight...