I think Disney ran into this with people generating Marvel characters etc
Fictional characters can have their own copyright.
https://www.nolo.com/legal-encyclopedia/protecting-fictional...
https://en.wikipedia.org/wiki/Copyright_protection_for_ficti...
Fictional characters can have their own copyright.
https://www.nolo.com/legal-encyclopedia/protecting-fictional...
https://en.wikipedia.org/wiki/Copyright_protection_for_ficti...