I've probably come across many, but not bothered to take note. As far as copying names from pre-existing media, I don't for my mains or any character I play seriously, but I may either do it on alts to see if I can cosplay them as such, or just mess around with character creator. I managed to make Rose Quartz from Steven Universe, and Milia Fallyna from Macross (which worked better on GW2) on the character creator, and I have an alt named Id from Xenogears for shits and giggles. With Id, I want to see if I can dress up appropriately, and on a related note, I have seen an Elhaym Van'houten running around.