Dave Curtis is an agent with British Intelligence.
The time period for his operations is the mid-60s, well and truly in the heat of the Cold War and the competition for influence over nations all around the globe. For example, we have adventures with Curtis in the Middle East with a particularly costly mission in Yemen, an interesting case where Curtis is called out of a mission in Madrid to head to Jamaica and some spooky interaction with voodoo, and we have him in West Berlin heading east into the Iron Curtain controlled part of the separated city.
In all those missions Curtis works for a section of the U.K. intelligence community that is not readily known to most citizens; its headquarters is disguised as a small printing company. We find during out brief period following his activities that he has apparently several different handlers controlling his assignments or perhaps simply a case of one man's departure followed by another's arrival. Whichever it is, it seems that management has issues with Curtis considering the way they talk to and treat him. This is odd because in the adventures recorded about him, he has been resourceful in his actions and successful in his results.
In what would seem keeping with the sartorial style of the day, Curtis is invariably seen dressed in coat and tie with starched white shirt. He is a good-looking man with fairly short, black hair. In the first couple of adventures that I have seen, he has a black patch over his left eye, obviously an unfortunate souvenir of a previous mission. In a later one, he is without the patch so would say to me that either this mission took place before the optic orb was lost or he replaced it with a glass one - both speculation on my part.