We don't have a name for a guy I mention in this post, and who can be found on pages 350-2 of Brisingr. However, I find it quite interesting that he suddenly starts seeing things just as he is blinded.
Remember Maud'dib? He seems to gain more power when he becomes blinded.
We already know that Paolini was influenced to some degree by Frank Herbert.
1) Maud'dib spelled backwards is Bid'duam, the name of the first Eragon's dragon. Oh and there's the werecat named Maud.
2) Elva. She's a lot like Alia in that she's aged at a very young age.
It'll be interesting to see what happens to this sun dude (and hopefully we'll learn his name!!) in the fourth book of the Inheritance cycle.