is storm shadow's voice dubbed in g.i. joe?

Here's a brief TV spot for the upcoming movie, G.I. Joe: The Rise of Cobra. Nothing special, and not much we didn't see in the first couple of trailers. (As I've said before, I have extremely low expectations for this movie.)

But I'm posting this because I noticed something funny -- is it just me, or has Lee Byung-Hun's voice been dubbed in this commercial? ("He never gives up.") Something about it just seems odd, right? (Thanks, Tiffany.)

UPDATE: According to the G.I. Joe: The Rise of Cobra IMDb page, the credits list Ron Yuan -- an actor I know and respect -- as "Shadow (Voice)." Could he be the mysterious voice that appears in this commercial? (Thanks, Nicholas.)

UPDATE 2: So I've heard from a guy who knows a guy, who gives the assurance that Lee Byung-hun's voice is not dubbed in G.I. Joe. In fact, his English is apparently quite good -- no dubbing necessary. It just seems to come off kind of weird in the clip in question. I went back and watched this longer, better quality clip with the same bit of dialogue, and it's fairly clear it's his own voice. That said, I still don't think this movie is going to be very good. (Thanks, Robert.)