Eduardo "Atcho" Xiquez is an agent of American Intelligence.
I would love to be able to pinpoint exactly whom he worked for but it gets a little confusing.
Atcho, before we first meet him, had been the pride of Cuba in the days before Castro took over. His father had been a successful sugar plantation owner in that island nation. Young Eduardo had grown up with privilege but his father, a very down-to-earth man, had instilled in him an ethic of responsibility and service to the people. Atcho, as his father called him, used his father's connections, along with his own talents and hard work, to earn a spot at West Point and upon graduating, became an officer in the Army. Not content with just doing okay, he pushed himself and later earned a spot in the coveted Rangers. When his time of service was over, he and his bride returned to Cuba and he took his place beside his father.
Then the dictatorship of Batista fell to the communist dictatorship of Castro and Atcho's life changed drastically forever. Atcho was on the side of those fighting Castro and reluctantly took part in the disastrous Bay of Pigs fiasco. Seeing some of his family murdered and his daughter kidnapped by a KGB officer wanting Atcho's hide, he would spend many years in a couple of the worst prison hell holes Cuba had to offer.
But it is when he gets out that his life as an operative in the cloak and dagger world gets started.