Bathar
Bathar of Hodos was a merchant in the Delta Quadrant. His species were a green-skinned humanoid with a spiny ridge down the center of their faces and no hair on their heads. 

In 2376, Bathar, after having met four members of the  crew, claimed to have a formula that stopped the aging process. Commander Chakotay remarked that it was only a tripolymer enzyme, but it made a great shoe polish. Captain Kathryn Janeway commented that he was "very photogenic." ()

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Individuals