Gotens was a Trill symbiont, a symbiotic life-form that existed with humanoid Trill as a joined species. Each joining of Gotens with a host created a new, unique individual, but each individual also carried the memories of the previous hosts. (Star Trek: Phoenix-X)


In 2377, two Trill thieves abducted Night Gotens and extracted the Gotens symbiont through medical procedure. One of the Trill thieves, known as Lex Seifer, was then given the Symbiont, turning her into Lex Gotens. The Seifer symbiont from Lex was then put into Night, turning him into Night Seifer. This trade was prompted by the other Trill, a James Gotens, whom received the Gotens symbiont from the mirror universe only two years earlier; his intention was to bring both symbionts together. Unfortunately, through their successful escape, Night Seifer became desperate and obsessed with getting his Gotens symbiont back. ("Secret Shuttles, Part I", "The Nega'Jem, Part I", "Avalon Battlefield, Part I")