Slick Willy, the human Extreme Explorer (Eberron). He was completely worthless in combat, had speaking mannerisms similar to Duff Man, and had a ridiculously optimized Jump check (mostly based on stacking modifiers and speed-related effects). Also, a Dire Cheetah mount. In true Extreme Explorer fashion he'd use Action Points to get out of any sort of situation (such as when he tried to bargain with a sewer lair full of Umber Hulks) that he often got into by using Action Points. He had most of the feats which boost AP stuff (such as gaining a new AP whenever you roll max on your action die), and studded leather armor with black and yellow bumblebee striping.
