A lot of spoilers for Civil War recently and when I checked IMDb, there was a casting choice for a "Businessman". When I checked Chandra Shaker Sangam, it came up with another Marvel movie he is in. Ant-Man. Only as a casino player. We can tell this "Businessman" is very wealthy and important in MCU continuity.
By the looks of him, he could be a very Arab Mandarin, which would keep Iron Mans story to continue, or Puma as both are businessmen but why would either one be at a casino? How would Puma fit?