Alex Mason is an agent of ODIN.
That acronym stands for "the Office of the Democratic Intelligence Network, a cooperative enterprise between the United States, the United Kingdom, Canada, Australia and New Zealand - the so-called Five Eyes." We learn right away that "?ODIN was housed on the eighteenth floor of the Commonwealth Building at 1300 Wilson Boulevard, in Arlington, Virginia. The fact that the Commonwealth Building did not have eighteen floors did not seem to be an issue for most people who, in any case, had no idea what ODIN was".
ODIN is said to be a very secret organization, known by those in the know in the intelligence community but largely unknown to the general public. When Mason needs to present identification, he produces some showing he worked for the Office of the Director of Intelligence".
Running ODIN is an interesting man known only "as the Chief (with a capital 'C') or occasionally as Nero" for a particularly amusing reason. This Chief stands "six-foot-six in his stockinged feet and I estimated his weight at about 420 lbs. Some of it was muscle. Most of it was very good food." He also is said to have "two eyebrows that could have doubled as an impressive handlebar moustache".
We are given a good idea of Mason's lifestyle when he talks about waking and immediately going for a morning swim in his "covered pool" and soon he is heading into the office in his Aston Martin DBS (MSRP $300k+). [Do not read derision into that sentence - read envy!]
Mason is very much a ladies' man but he is good-natured about it, willing to take a turn-down without any bad feelings and with a good amount of humor. He is decidedly a confirmed bachelor and quite happy to live alone, except for Manny Pacquiao, his cat who tolerates him. "If routine is the reason I am still alive, my cat is probably the reason I am still single."
- "In a life which is ruled by chaos it is important to have a solid routine, especially breakfast."
- Regarding a rumor Mason had heard about his boss, "It was probably not true, but the point of rumors like that is, they could be true."