The Shadows from Hell's Kitchen
Lester "Professor" Koo
"Ah, here's your problem. We can solve it if we..."
Professor Koo isn’t your archetypical ork; he’s a part-time street-doc, and part-time something else. His schedule is chaotic, so it can sometimes be extremely difficult to contact sometimes. Like “he’s-not-on-the-same-continent” difficult to reach. But he often makes up for it with his extreme knowledge and capability. Also, he always seems able to acquire some of the neatest tech, within a reasonable stretch of time (depending on the restrictive or availability of whatever it is).
It is obvious by his demeanor that he only practices “shadow medicine” in his spare time; the only question that remains is “Who is he in his other life(s)?”