Yes!
I am white,
I come at the darkest time,
I bring light. (literally)
Who am I?
The albatross.
Sorry about the delay. 😀
Yes.
My voice is like a serpent's,
I eat things most precious,
and I bathe in fire.
Who am I?
The fire-salamander-thing (I forget its exact name) that lives in Bism.
Correct. 🙂
I let my brother manage my money
(A very bad idea),
I don't approve of bare arms
Who am I?
Aunt Letty!
I'm so sorry, I can't believe I forgot about this! But, yes, Aunt Letty is correct. Your turn! 🙂
Yay!
I frightened my King and his companions,
yet I am a friend,
though I bring frightful news.
Who am I?
Oh, is it that Dryad from the movie? The one who brings the news of Aslan's death!
Nope.
Shasta? (Though I'm not sure he would call King Lune "my king")
Or... the dryad from LB who alerts Tirian the forests are being cut down (Woe!)
No and no. All good guesses, though.