CIA Agent Sheldon Jeffrey Sands, aside from the fact that he is a member of the Central Intelligence Agency and was at one point stationed in Mexico. He operates under his own system of morals, considering himself to be the one to "keep the balance" in society (as explained in a scene where he callously shoots a cook because his dish is 'too good. He maintains a calm demeanor, but is clearly quite wily and dangerous, as he kills without second thought and with prodigious skill.