As per usual, 4kids fucks up everything it touches. In this case, 5d's. I don't know how 4kids has been able to successfully censor everything in 5D's anyway: there's much more violence. So far, the main protagonist has managed to be electrocuted, tattooed/marked (painfully, might I add), electrocuted some more, thrown against walls, hit with numerous dueling spells gone real, and been impaled with shrapnel and having to endure surgery apparently with little to no anaesthesia. 4kids might as well call it a new show altogether.
Anyway, Jack's Japanese seiyuu uses a deep voice with the character. And what do I hear while watching the dub? Ted