User blog comment:Vorred/Patriots: The Dicussion - September 2013/@comment-958607-20131001093439/@comment-5174759-20131002104535

Yep, in all honesty. He will partly explain the Toa's origin and be a mentor for them.

You were able to make out my computer handwriting on the letter, great :D But on that part you haven't guessed right. Ridor is a Matoran guard of the main city while The Mentor has a different name.