This would be funnier if you owned WCoA's tone more. It doesn't have to be the same Doctor Claw voice from the movies, but thsi guy should be, recognizably, the same scary dude who tells Eowyn that no man can kill him.
Author's response
It's supposed to be a parody. You know, completely crtack-fic. If the Witch King was the same being that he was in the books, that would defeat the purpose of my fic. Thanks for reviewing anyway.