DnD 3.5 (Terra)
Jimbo is a transdimensional traveling merchant with a penchant for extremely unusual items. He appears to be a big gutted, scruffy-haired human who wears extremely worn clothing and a backpack. He is accompanied by a curious white chicken he calls Fishstick with deep, black eyes.
Although he mainly deals in strange wares he isn’t unknown to provide other services if the price is right, although he is notoriously unreliable.
Jimbo has a cousin named Jimbob in another dimension.