Tiron's species were a humanoid species, presumably from the Alpha or Beta Quadrant. Their faces were segmented, with the largest divisions between the forehead from the rest of the face. Green coloration was present on the forehead of a generally pale face. Members of this species had visited Deep Space 9 at latest in 2371. Tiron, a frequent customer at Quark's, was a member of this species. (DS9: "Meridian").