I tried copying and renaming that character file but all that did was create a copy of the character with the same name. It might be possible with the right program to edit the character file though. Otherwise hopefully something the devs will implement in the future, along with the ability to change appearance.

In the meantime you could always make a fresh character with the name you want and just outfit them with all your old character's gear. would still have to relevel skills and probably unlock crafting recipes again though.

Gotcha, well thanks for the insight!

A guy on reddit created a Character Editor and posted it on Github[github.com]
Remember to backup you character file before editing just in case.

:o :o :o o hell yea ty

Couldn't find any recent posts about this so posting here instead:

The character editor on Github and the character renaming site doesn't work for recent versions of Valheim. Instead you can use a hex editor, open your .fch character file, search for your current username and edit that way. Character files can be found in Steam's userdata folder, make sure to make a backup of your cloud save.