Oh gods, I hadn't noticed until you guys pointed it out, but these are all the same character, just slightly different flavours, aren't they?
And worse, as pointed out, it's the same "trick" they pulled in DOS2.
I really hope there's an option in the final game to run with a completely custom party.
Compared to Dragon Age, Pillars 1 & 2 and the Pathfinder games, this is really bad.
I think the only one I actually like is Astarion, because comparably, he wears his heart on his sleeve, and his "secret" is revealed relatively quickly ( if you hadn't already guessed it from the obvious promotional character art).
Is this done for the same reason it was done in DoS2? To create conflicting goals among co-op players?