According to IMDB two new characters were added.
Rameses - believed to be the leader of the Yemen soldiers, we already know that.
Salim- A new character was seen today on IMDB known as Salim who is also middle eastern looking from London. He looks like he probably is a hero similar to Tenzin. Though his actor is British.
Sorry I have no pictures.
Brand New Characters
Some more characters were found!
Agent Harris- Some new character who is acted by Scot Carilsle.
Middle Eastern Pirate - Currently unnamed, a new Middle Eastern Pirate was heard of too acted by Sam Sako.