"Greymor is an experienced wizard and retired battlemage. At roughly 250 years of age, he's still a formidable opponent, though he prefers isolation in his books to the chaos of battle. When the Age of Ruin began, a period of darkness that blotted the sun out for two decades, Greymor took it upon himself to go around to the local villages, using magick to prevent crops from withering and causing the people to starve.

It was during this time that he met a young farm boy, Krest White. The boy had witnessed him using magic to restore decayed crops to life, and became fascinated with the how's and why's of magick, asking many a question, eventually leading to him begging he take him on as an apprentice. Greymor, reluctant to do after the fate of his previous apprentice, declined many times. But the youth's persistence eventually got the better of him.

Once the Ruin had ended, Krest had set out on his own path with his friends, journeying out of their village to explore the world. With some parting guidance, Greymor saw him off. They still keep in contact through letters; Krest with questions, and Greymor with answers."

Looking for a raspy, wizened voice. The best example I can give is Christopher Lambert's take on Raiden. However, any take on the voice is welcome. Keep in mind, while his age is advanced, Greymor is not some withered old man. His physical appearance appears to be more middle-aged than anything.

While he will appear in certain points in the story, he is primarily the narrator. With bits at the beginning of each chapter.