Peter Baron is a freelance operative.
By freelance I mean, of course, that he can and does work for whomever he chooses but he invariably has chosen to work for the powers of the West as far as I can tell. American intelligence organizations have used him considerably and he is held in high esteem by them though it would seem several of their key personnel resent his freedom.
Baron is an American by birth and citizenry but he is an expatriate through and through, returning to his homeland only for short visits, at least according to a comment in the first of the three short recorded adventures we have of his. In the third adventure he was indeed just visiting the state of Hawaii but becomes embroiled (almost literally) in a mission there.
We learn early on that Baron is a man of considerable wealth but since no reference is made to work outside the cloak and dagger arena, we must conclude the money came from an inheritance. However he got it, he most definitely has a lot of it as he owns a plush villa on the Riviera and a very pleasant yacht known as the La Bonne Chance. He drives (and rather dotes on) a '64 Lancia which was a vehicle most admired for its luxury (I looked it up).
Chief among the people that Baron is routinely set against is a vast international criminal organization known as I.C.E. According to Mr. Satin, the leader of the group, the acronym stands for International Combine of Entrepreneurs but Baron countered that his people referred to it as the International Combine for Evil and the very nasty Mr. Satin not only did not argue, he seemed to enjoy it.
Aiding Baron on his missions is the Italian nobleman Il Duca (The Duke) who has an air of rascal about him but since he is on the side of the angels, it is forgiven and his many contacts with cousins around Europe prove quite useful.
And then there are the ladies, each one more beautiful and sensuous than the one before and each one waiting anxiously for a chance to woo Peter Baron. He is nice enough to let them. Often.