They attack you, at least most of them if not for a special quest or anything - One in the Dark Brotherhood for example is a vampire and he doesn't attack you, he only gives you quests
Myself tho, I've turned into a real vampire now - and people won't even speak to me so need to find myself a way to cure the disease since I have a world to save
Myself tho, I've turned into a real vampire now - and people won't even speak to me so need to find myself a way to cure the disease since I have a world to save
Just sneak up on a sleeping person and hit spacebar. You'll feed on them and appear human again. Then people will talk to you.
Your 'victim' will of course, be unharmed.
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"You’ve put up a good fight, but I’m through playing. Now I’m going to kick your [censored] and tell of my glory under the next full moon. Die well.”