No. Eight of the character options are evil. Of the three remaining two of them are returning characters from an epic level campaign, which can't really make any sense.
So that leaves Halsin. Halsin, by himself, is not diverse enough to fill a four character roster.
I'll just say that opinions of every other character aside, Karlach is very much not evil. She was sold into slavery to a devil and spent that time fighting demons. But she's described as having a heart of gold and the glimpse we got of her is insanely wholesome.
All of the origin characters are evil by definition. If they weren't evil they wouldnt have got a tadpole. Karlach might keep her evil better hidden than Shadowheart but she's got to be evil because that's the story structure Larian went for.
Huh? That doesn't make any sense
What isn't making sense for you? Swen mentioned a few times in the panel from hell that the story was about handling your own dark nature and thats what ties it to BG 1 and 2 and its only from this angle the origin characters start to make sense. There are 8 of them, including no origin. Excepting Karlach if we look at the seven remaining we have four of them that are straight up stupid evil. Gale and Wyll were better camouflaged, but we've seen in the new description of Gale that he's got some serious darkness in his past.
Wyll was actually very well done for an evil character as he's driven by ego and his desire to be seen as a hero makes him look like he might actually be a flawed good character. But when you analyse him a bit more you see that he's always only doing what is most expedient and convenient for himself which is ultimately the core of being evil. Then even if you select no origin you have the dream sequences pushing you into accepting power consequences be damned.
With all that it doesn't make sense for Karlach to be the only exception based on a few snippets of dialogue, and there are plenty of seeds of evil in her backstory.
