Although definitly not a 100% reliable site, if you go to the Age of Ultron Full Cast and Crew List. You see there is someone listed as Klaue's Mercenary. This could mean a number of things, Klaue could mean Colonel Klaue, a Nazi commander. Or it could mean Ulysses Klaw, enemy of Black Panther and someone spelled his name wrong...! There are a number of other credits for Somolian Pirates so maybe...just maybe... that is a cover up for Wakanda. Of course this is all pure speculation at this point. If anyone has other theories on the cast, I'd love to hear them!