Lon is a wandering merchant who travels from place to place, offering both goods and information to those who can pay. He is not a central figure in the story but rather a recurring minor character, frequently appearing or being mentioned in unexpectedly coincidental situations. This pattern of accidental encounters gives him the quality of a running gag throughout the series. His personality is not deeply explored, and his motivations are limited to trade and profit. He does not undergo any significant development, and no notable combat or supernatural abilities are associated with him. His relationships with the main characters are brief and transactional, and he does not play a direct role in the central plot.