This is what The Guide explains about them:
- "On the Isle of the Nameless, we are not called by individual names. We are instead each known by our individual roles. While you are here, you will encounter many masters and students who are willing to share their knowledge with you. Do not be afraid to approach them, for their knowledge will help improve your skills in combat."
For a list of Nameless Masters (both friendly and hostile), see: Category:Nameless Masters