I don’t really know this guys work, but I guess he looks like he could be a Zartan. I’m not totally up to date on the Joe movie, are they still an international team thing?
He was Imhotep (a.k.a. "the Mummy") in The Mummy. Also a terrorist baddie in season... 2, I think... of 24. EDIT: Nope. Season 4. Great casting, IMO.
The "third rock kid" is a fantastic actor, I wouldn't sell him short based on his role years ago in a sitcom. Go and rent "Brick" if you want to see what he's capable of.