NPCs are abound here and here are the breakdown of some of them.
Solomon – weird little guy, he seems to be gushing over you for saving Neverwinter. As a token of his appreciation, he’ll be giving you a ring. If you accept it , know that it’s a tracking device that the bad guys are using to know your every move so be careful.
Elaith Craulnober – the giver of the Serpent’s Gem Quest. Refer to the Sidequests area for details regarding this.
Ander – essential to the Black Wolf Quest so talk to him
Alhelor – he’s the guy selling anti-lycanthropic items and further into the story, you’ll discover that’s he’s the culprit (the Black Wolf) in the Black Wolf Quest.
Darktongue Breakbone – nutty little guy, he’s very interested in your quest so watch out for him
Innkeeper –well, he’s there to conduct merchant services with you