Need NPC concepts, Because there's people in the shadows besides you Options

[ZeroSpace]

I've started up a game with a mostly new set of players, and in doing some preliminary prep for things, I've noticed that I have a relatively small set of NPC's I use. I'm trying to correct this, but I'm having trouble coming up with workable concepts for this.

The game in question is running 4e rules, for what that's worth, and I'm leaning a bit more to the mohawk side of things with this new group. Putting a number to it, I'd say a 4 on a scale of 1-5, 5 being full mohawk. I've had 1 interesting idea so far, but would only be useful in very specific situations. A cybered mantis shaman Bug-hunter with Weapon Focus Cyber-spurs isn't something you see everyday.

So, what I'm looking for is just some suggestions for NPC concepts, something that will mesh well with a primarily mohawk feel. In particular, I'm looking for concepts for NPC runners, since due to mainly GM-ing games I don't have much to mine from my past characters. Thanks in advance.