STAR TREK: The Trans Trill, Explained

Geek Girl Authority

10-06-2025

For decades, many Trekkies have considered the Trill alien species on Star Trek to be a trans allegory. How long has this interpretation been popular? And how has the Franchise leaned into this trans representation?
For this week's second Pride Month Trek Tuesday, we're examining the read that connects the trill with trans representation. Star Trek: The Next Generation
The Trill were originally introduced on Star Trek: The Next Generation. In The Next Generation Season 4's 'The Host,' a Trill ambassador visits the U.S.S. Enterprise-D in order to take part in some sensitive negotiations on Peliar Zel II. This Trill symbiont, 'Odan,' was originally joined to a male host (Franc Luz).
The Trill species is comprised of two kinds of life forms. There is the symbiont, a worm-like entity. These long-lived symbionts can inhabit a humanoid 'host' body. Once this has transpired, the 'joined Trill' will possess a new personality. This is the synthesis of the personalities of the symbiont and the host.
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In 'The Host,' Odan's male host and Doctor Beverly Crusher (Gates McFadden) became romantically entangled. However, Odan's earlier host was subsequently killed. In order to preserve the life of the symbiont, Dr. Crusher performed a procedure that transferred Odan from the original host into the body of William T. Riker (Jonathan Frakes). This complicated the romantic relationship between Odan and Crusher. This was because she considered Riker to be akin to a brother to her.
At the conclusion of the episode, the Odan symbiont is transferred to a new host: a woman, Kareel (Nicole Orth-Pallavicini). There is a taboo among the Trill regarding continuing a romantic relationship across different hosts. Nevertheless, Odan was willing to disregard this and continue the romance with Crusher. However, Crusher felt that the repeated changes in hosts were too much, and declined to continue the relationship. This parallels the way that a relationship will sometimes conclude when one partner transitions. Star Trek: Deep Space Nine
After being introduced in The Next Generation's 'The Host,' the Trill played a major part in Star Trek: Deep Space Nine. This was thanks to the fact that one of the command crew members was a Trill: Jadzia Dax (Terry Farrell). Sporting a new design (for both the host and the Trill), Jadzia introduced viewers to many facets of the Trill that were not explored in 'The Host.' Among other details, this included the fact that unjoined Trill symbionts swim in cave pools on the planet Trill.
However, one aspect of the Trill that was introduced in The Next Generation was obviously and immediately continued in Deep Space Nine. This was the idea of a Trill symbiont moving from a male host to a female host. This was because Jadzia was a new host for the Dax symbiont. However, the previous host for the Dax symbiont was the late Curzon, a male who was the friend of Benjamin Sisko (Avery Brooks).
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In an early Season 1 episode of Deep Space Nine, 'A Man Alone,' Sisko and Jadzia discuss Dax's 'transition.' In that scene, Jadzia notes that sometimes Trill friendships with other species 'don't survive the change.' Sisko says that it will be different for them, but that things are 'uncomfortable' at the moment. Jadzia suggests to Sisko that he learn to 'comfortable with his discomfort.' She continues that 'Time will do the rest.'
Ultimately, Sisko's friendship with Jadzia does survive 'the change.' However, Sisko does continue to use the nickname 'Old Man' when speaking to Jadzia. While misgendering a trans person is not recommended, it's clear that this nickname is a sign of Sisko's affection for Jadzia. A Trans Allegory?
There are many other scenes featuring Jadzia that are held in high regard by those Trekkies who perceive the character as a trans allegory. To cite just one more out of many examples, we can turn to the Deep Space Nine Season 2 episode 'Blood Oath.' In that episode, Jadzia reunites with a friend, Kor the Klingon (John Colicos), whom she knew decades earlier as Curzon.
Initially, Kor refers to Jadzia as 'Curzon, [his] beloved old friend.' However, she corrects him by stating, 'I'm Jadzia now.' Kor immediately amends his statement: 'Jadzia, [his] beloved old friend.' For the rest of the episode, Kor refers to her as 'Jadzia' and uses her correct pronouns. These days, the scene has become something of a popular meme. It is frequently posted as evidence that even Klingons can adapt to a trans person's changing names and pronouns.
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Furthermore, interpreting Jadzia as trans is not something that is a recent development. For proof, check out the Summer 1997 issue of Transgender Tapestry magazine. Jadzia is the featured model for the cover of Transgender Tapestry #76. The cover states: 'Star Trek, Transgender & the Final Frontier: Gene Roddenberry's Bold Journey Where No Trans Had Gone Before.' While the issue was released 28 years ago, the discussion around Jadzia remains unchanged.
Sadly, and in one of the most controversial plot beats of the series, Jadzia is killed in the penultimate season of Deep Space Nine. The Dax symbiont is subsequently transferred to a new host, Ezri (Nicole de Boer). However, it is easy to speculate how any aspect of this transition might have been handled differently, especially if the series were released today. Trans Like Me Photo Cr: Paramount+ © 2021 CBS Interactive. All Rights Reserved.
When it comes to the Trill on The Next Generation and Deep Space Nine, we have a trans allegory. While certain elements of the Trill stories align with the contemporary trans experience, other elements do not. However, the Franchise eventually bridged this gap thanks to Star Trek: Discovery.
In the Discovery Season 3 episode 'Forget Me Not,' we're introduced to Gray Tal (Ian Alexander). Like the other joined Trill in this article, Gray has both a host and a symbiont. However, his story is somewhat complicated. When we first meet Gray, his host body is dead. The Tal symbiont has been transferred to a human, Gray's partner, human Adira Tal (Blu del Barrio). Because Adira is human, they do not join with the symbiont in the same way a Trill host would. However, Adira does continue to see visions of Gray.
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Eventually, the problem is solved by removing the Tal symbiont from Adira and transferring it to a synthetic 'golem' using the Soong method. This can easily be seen as an allegory for contemporary gender affirming procedures.
However, unlike previous Trill, Gray is also textually trans. This is thanks to the fact that the humanoid Trill host is a trans man. Before joining with the Tal symbiont (and before his death), Gray had already transitioned. While trans allegory is good, making Gray textually trans (while maintaining allegorical elements) allows us to have our replicated cake and eat it too. We Get to the Future Together
Hopefully, the Star Trek Franchise will continue to offer textual trans representation moving forward. As Great Bird of the Galaxy Gene Roddenberry said: 'Star Trek was an attempt to say that humanity will reach maturity and wisdom on the day that it begins not just to tolerate, but take a special delight in differences in ideas and differences in life forms.'
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Roddenberry continued, 'If we cannot learn to actually enjoy those small differences, to take a positive delight in those small differences between our own kind, here on this planet, then we do not deserve to go out into space and meet the diversity that is almost certainly out there.'
These episodes of Star Trek are currently available for streaming on Paramount+.
The Premise and How STAR TREK Fans Created Fanfic as We Know It Avery Kaplan is the author of several books and the Features Editor at Comics Beat. She was honored to serve as a judge for the 2021 Cartoonist Studio Prize Award and the 2021 Prism Awards. She lives in the mountains of Southern California with her partner and a pile of cats, and her favorite place to visit is the cemetery. You can also find her writing on Comics Bookcase, NeoText, Shelfdust, the Mary Sue, StarTrek.com, in many issues of PanelxPanel, and in the margins of the books in her personal library.