Over the course of my time as an operative I have developed relationships with several individuals in an effort to diversify the skills available to me. Some in my profession call them assets, I prefer to think of them as associates.
A list of quick personalities for the many faceless NPCs.
The Crew of the “New Hope”, a fine, and not so fine, bunch of seafaring men.
He shuffles along in his ragged clothing, mumbling “Leave me alone”.
Faster than the wind, this Red Cap Messenger flies (okay, okay, runs - but you get the idea).
There is a person who has a well-known reputation, probably involving something illegal. But this person is either very clever and crafty, or really like his or her privacy, for no one knows who this person actually is. As an added twist, perhaps this person is of an age that would noramlly be wildly inappropriate (say, a child is a much-feared bandit) or maybe not the expected gender or even race.