Initials game!!!

[Ainaserkewen]

This is my first post in here, so bear with me.
Ever heard of the initials game?
You give out initials(it has to be at least two letters) then guess who they belong to.
ex. B.B.
Say you didn't know who this was, you ask yes or no questions until you do.

Is he/she and elf?
No.
A hobbit?
Yes.
Is he/she a Baggins?
Yes.
Bilbo Baggins?
Good Job!

And so on, but I, and I hope everybody else will come up with harder ones than that.
Oh, and for all the characters with one name, take Legolas or something and put in either their other name in english(or elvish) after a period.
ex. L.G.
or who they're daughter/son of, only with a dash wo we know.
ex. L.-T.
Or if they have many different names like Gandalf...
ex. G.M. or G.S.
or ex2. A.L. for Aragorn, with their dominant initial first.
So I'll start with an easy one.

Who is G.-R.