LadbrushThreepwood: Agreed. For some reason I thought that they were only giving us the "evil" companions during the early access so that people could explore bugs through their questlines etc. (as most people would pick the "good" companions in their full-game playthrough). Nope, these are the only companions - and they are almost entirely unlikeable. If I ever bring myself to do a second playthrough it'll be with a fully player-generated party.
I must admit that I'm quite disappointed at the choice of companions too. Don't get me wrong, the ones we have are pretty interesting, but they feel very limited. The vast majority of them are the Origin characters, and there is not a single Dwarf, Gnome or Halfling companion. (Why the hatred for shorties, Larian??) We do have the option of hiring henchmen to fill out our party if we really can't stand the companions, but I've been told that the henchmen basically just follow you around like mute AI robots. They never have anything to say, never participate in conversations, etc. Definitely not on the same level of quality.
At the very least, I think Larian should have created 8 companions, 1 each on the Good/Evil spectrum for the four major roles in a D&D party (Warrior, Mage, Priest and Rogue), and then potentially added more as time allowed. As it is, we've got some roles that are majorly over-represented; mostly Priests and Warriors, but Mages and especially Rogues are painfully limited.