Many of the followers in Skyrim are very bland in my opinion BUT there are a select few who are interesting to bring along on adventures and general shenanigans in Skyrim. One of the more noble followers and more interesting ones (Despite the fact that she repeats a lot of things) is Mjoll the Lioness, who is currently following me. I'm trying to find a character who isn't a mute pack mule but would suit a sneakier character. It would be much appreciated if you guys could give examples of any, sneaky or not sneaky, followers who comment on things during your adventures.
Thanks for the suggestions, I was expecting Cicero to be mentioned, but in my little role-playing universe my character, while a dirty thief doesn't dig that whole Black Sacrament business and what-not.