The Genteel Man is an agent with the Organization.
The extremely hush-hush American governmental agency, according to the Genteel Man himself, is one in which We watch over other agencies that step beyond the boundaries that were created for them. There are protocols, and then there are protocols. For those who consider themselves elevated above the established rules, then it is up to me to act as the guardian to right a wrong. Like a parent with an unruly child."
He would further go on to tell the man he was explaining this all to, a man named Sage Whitmore who will eventually become someone working for the Organization as well, "We are so deeply buried ... that the alphabet soup agencies within the United States have no knowledge of our existence outside of the selected few." One of those few includes the President of the United States who is the groups "primary employer".
Inside the Organization, the Genteel Man is known as 'One' which he admits is "kind of vanilla" but suffices and that is what Whitmore will use to address him. It is not, however, the term used to refer to him throughout the recorded adventures. Whenever we read of his actions, which is a lot since he is one of the main participants in these adventures - though not the only one - he is called simply the 'Genteel Man'.
It is a bit odd but after a bit you get used to it and it really does fit the man, the way he looks and the way he acts. He is described as being tall and thin and immaculately dressed in a tailored suit, usually seen outdoors wearing a stylish fedora which in this modern world where few hats other than ballcaps are worn by men, it fits him so well that anymore seeing him would likely dismiss him as anything dangerous. Even he calmly describes himself to another individual as "I'm a man who sits back and observes matters that could be considered as questionable undertakings by certain organizations.". It is also said of him that he "was a man of remarkable reserve and refinement, especially in his approach to speaking, which was that of a highly educated man".Mind you, he would, moments later, point a pistol at that individual and calmly assure him that "I am quite a shot. Rarely do I miss, especially from a close range", and then go on to prove it, to that man's detriment.
Eventually assisting the Genteel Man, as mentioned above, is Commander Sage Whitmore, designated 'Sierra One' of eight in the small CIA-backed black-arm paramilitary unit known as the Sons of Perdition. "They had no identities, no parents, no backgrounds, no social security numbers, or birthdates - they were nonexistent to everyone except for the leading principals at Langley." That group, in the first adventure, being used off-book by a small group of very unethical, bad men in the American government to take down another equally unethical bad man and his bodyguards, which puts them on the outs with Agency and on their kill list, at least until the Genteel Man realizes they had been duped and decided he could make use of those still alive.