I think lone-wolf doesn't work as it triggers a character flag which doesn't have a deactivation. That makes the most sense.
Yep, that's what I thought. I'm stuck with the two main player characters in this playthough sadly. Even though they are not Lone Wolves anymore...
Edit: Is there a way to find out a character name under the Characters/CharacterFactory/Characters nodea? I'm trying to look into a specific NPC(Jharl) and can't find him in there.