Adam Hood is an agent for the Australian Security Intelligence Organization.
He has been an operative for several years at the start of the three-book series, having reached a position of authority enough to be in charge of a small branch office in Sydney. Despite being the lead man, he is also the agent that his boss in the capital calls when there is a problem, a call that insists he take the mission himself.
Very little information is given about the man in the books told in the first-person. He is obviously in his mid-30's based on comments made by others with younger people talking about the old man and older people wondering about the youngster. He has a sense of humor, especially about himself, but he takes his job seriously enough to not take grief from those who get in his way, especially a couple of police officials who decided he could not do what he knew he needed to. Hood is not a man to back down.
He is, as any good agent should be, quite willing to admire the occasional beautiful lady who crosses his path and is not adverse to partaking of their charms should they be offered. In the first adventure, he finds it necessary to force a young woman, who may or may not be a spy and a murderer, to accompany him to a nightclub hangout of communists. She decides dressing in front of him was fine. After the trip, she decides undressing before him is also fine. Both times he admires but does not touch. The next morning when he goes to collect her and she offers again, he decides he had had enough of being a good boy.
From his actions and his temperament, there is no doubt that if the world of counter-espionage had not been available to him, Hood would have been a very fine private investigator and the hard-boiled attitude he brings to his adventures shows that consistently. He needs to know the goings-on in a private club filled with communist sympathizers so he forces an introduction and lets everyone there know who he is, ready to take on any dissenters. When needing information from a man who is not willing to reveal it, Hood's fists are there to change the man's mind.
Hood's turf might be down-under but he would have fit into the freeways of L.A. or the steel canyons of New York or the foggy streets of London just as easily.