Eliann is one of the Taresian women who welcome Harry Kim home in Favorite Son, persuading him he is one of their people so that he can be used for reproduction and killed.
Eliann appears in the third-season episode Favorite Son. After Kim develops strange instincts and a rash of spots, Voyager reaches Taresia, where the almost entirely female population greets him as a lost son conceived there and sent out among the stars.
Eliann is among the attentive young women who surround him with flattery, gifts and the promise of several wives. The reality is that the Taresians infected him with a retrovirus to alter his DNA, and that their mating draws so much genetic material from the male that he does not survive, as the bridegroom Taymon discovers.
When Kim works this out, Eliann and Rinna come to his room to prepare him for his own wedding. He pretends to go along with their game of binding, ties Eliann up instead and fights his way out to be rescued by Voyager.