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).
Rather than making a baddy impossible to hit, consider giving it mega-hit points.
Super hard to hit leads to great player frustration. Allowing them to do damage leads to a sense of accomplishment. another variation of this would be to give the bad guy a forcefield that shows damage.You could also give them a mastermind ability that sluffs the damage of to minions who should be easy to kill.Once in a while a super high to hit encounter is ok ,but it should be few and far between.
Your mileage may vary