I had a lot of fun with this, partly because he's pretty much the polar opposite of Logen (both in terms of character and the design), and partly because I've found a new technique for drawing characters quickly and cleanly:
Get the design down quick with a rough greyscale sketch, then move in with a detailed line drawing. Color overlays on top, then just work and refine things. Figure out all the issues with proportion and pose early, so everything after is merely a matter of cleaning up.
Just for fun, here's a jig I made to do some color correction on the coat:
Blue Man Glokta!