Back in PoE1 I ended up naming my character Alon, not knowing about Aloth.
It was confusing enough that I accidentally renamed it to Aloth in PoE2, since the save import does not carry your name over.
About 6 hrs in when I met the real guy I realized my mistake.
I'm pretty sure I found exactly where that data is saved, but any attempt to edit it will be reverted next time I launch/load the game.
Any help? I'm not above using a save editor or console commands, just really do not want to restart, especially with that slow intro.
Edit: at this point I bit the bullet and restarted.
Also, it appears that's not the proper location, as that's just the most recent save file, meaning all of them are stored elsewhere.