Just wait until you meet Esbern!
(Edit: He changes voice actors quite noticable.)
I'm pretty sure he does not. He's voiced by the great Max Von Sydow, and unless I'm horribly mistaken or wasn't paying enough attention, I heard his voice all along. (He's the older priest in the Exorcist, among other things.)
On topic, I agree. There are too many Austrians and Germans in this game. I think this is because there isn't a clear Scandinavian English accent, but rather people speaking poor English. The Arnie-accent is more distinct from other accents.
It does bug me a bit, though, because Skyrim is Sweden, Norway and Finland in my opinion, not central Europe.