No, I don't think you can change who the main character is...whoever you start the game as that's your protagonist...everyone else can be sacrificed or die or whatever but not your main character. So if you start the game playing as Astarion, then you are Astarion and everyone else can die and the game continues but if Astarion dies you go back to the last save or checkpoint and try again. There's no changing the main character.
Also in main story moments and at camp when talking to party members and other NPCs you can't change to someone else to pass the tough dice rolls for you...you are on your own.
Oh I see, so even though other companions can do the talking, if you control them, you can't 'win the game' as them, it will go to whoever the main character is?
In early access if your main character dies, the game is over then? And just lastly, in Divinity 2, I remember it being a little different because wasn't everybody the main character in that game and they were all competing as part of the story to become the god so to speak?
