The first is from Mu'tasin, a half orc cleric who works as a bodyguard. Mu'tasin likes gold and women. He's quite straightforward, prone to plain speaking. He does have an honor code that's the result of his clan upbringing.
The second is from The Tortured King. I can't reveal more than he is a fighter companion without spoiling things with him, but he's awesome to write for.From the previous snippets, the first was from Carcarin, a Calishite (from Calimshan) human wizard. Like most Calishites, she's haughty and very politically minded. She's also highly educated and often condescending, which tends to show in her conversations (see the second one from her for instance).
The second one from the previous post was Kvas, the gnome rogue who is your childhood friend and first companion. Kvas enjoys others pain and misfortune. He has a bloodthirsty streak and enjoys taunting others if you let him speak. Despite all this, he cares very much for his mother (who is neutral at worst) and sister (who is innocent and obviously good aligned), whom you meet in Neverwinter. You can see that he cares in the last snippet of his.
Some of the companions are pretty much pure evil and fairly one dimensional. But I've tried to give others more depth. It was a conscious decision to not have influence systems nor will anyone leave you because they disapprove of something. But if you ask them they may not be happy with things you do and will voice their displeasure. Just as the player is given the opportunity to say they don't believe in something like slavery and refuse to do quests related to that, some companions have evil things they do not like and do not want to participate in. Being evil doesn't mean you can't have an ethical code or other objections to things. Carcarin, for instance, hates it if you work with an npc that lives in a sewer among rats, it's disgusting and unsanitary.
