Astarion is obviously in the evil/neutral area but he was a thrall for vampires. He has lived with vampires. However, if you show him decency and trust he shows a very loyal side to him that seems almost good. He earnestly thanks you for letting you feed.
Um, no, he didn't. I trusted him, he promised to take only a sip, and as a result he sucked me dry and killed me. When I confronted him after being resurrected I got a flippant answer. Needless to say, I won't bother talking to him again - fool me once, shame on you; fool me twice, shame on me.
