Okay, I've been reading through this thread, and I finally decided to post, because if I didn't get a chance to weigh in on this, I would burst.
Forget Fitz, or Verity, or all those "main and important characters".
Being a bit of a character actor myself, I always get really wrapped up in character parts... supporting actors and the like.
My favourite character in Farseer has to be... Burrich. Yeah, yeah... I know. But there was something that touched me about him while reading the books. He reminds me of my Dad, I guess. A deep and emotional man, who has choked back his emotions for the "good" of his family (adopted son, in Burrich's case).
When I was reading, I always pictured Burrich as Henry Rollins. Gruff, surly, but with a heart of gold, a good head on his shoulders, and the ability to completely lose it if he needed to.