An official version of this species is available in the Beta Quadrant sourcebook.
Welcome to Ten Forward Fridays, where a new playable species is presented for the Star Trek Adventures roleplaying game, filling in some gaps until official material can be released.
For December we’re flashing back to the era of Star Trek: The Original Series with species that could be used in campaigns set in and around TOS. This week is the Deltans.
Deltans are pretty much confined to the movies, being made iconic by the bald and tragically doomed Lieutenant Ilia in Star Trek the Motion Picture. Deltans also appeared in the background of Star Trek III: the Search for Spock and Star Trek IV: The Voyage Home. In the later TV shows, Deltans were functionally replaced by Betazoids, with Counselor Troi replacing Ilia in scripts repurposed from Star Trek: Phase II for The Next Generation. However, the species was name-dropped in a late episode of Star Trek Enterprise, which also implied that first contact with the Deltans predated the founding of the Federation.
By the time of Kirk, Deltans had been Federation members for several decades. Despite this, Deltans would likely be somewhat uncommon on Starships, as Deltans serving off-world had to take an oath of celibacy: it was unlikely that many sensual Deltans would all be willing to take such as vow. They might be more common on diplomatic assignments or shorter deployments. In later eras, it’s also conceivable that that their pheromones could be mitigated through inoculation, allowing them greater freedom on the fleet.
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