Jadzia Dax

Jadzia Dax

Jadzia pictured in 2374 wearing the black and grey Starfleet uniform, introduced the previous year.
Species	Trill
Affiliation	United Federation of Planets Starfleet
Posting	Deep Space Nine USS Defiant
Position	Chief Science Officer Commanding Officer USS Defiant (Season 6)
Rank	Lieutenant Commander (Seasons 4-6) Lieutenant (Seasons 1-3)
Father	Kela
Partner	Worf
Portrayed by	Terry Farrell
First appearance	"Emissary" (DS9)

Jadzia Dax /dʒædˈziːə ˈdæks/, played by Terry Farrell, is a fictional character from the science fiction television series Star Trek: Deep Space Nine.

Jadzia Dax is a joined Trill. Though she appears to be a young woman, Jadzia lives in symbiosis with a wise and long-lived creature, known as a symbiont, named Dax. The two share a single, conscious mind, and her personality is a blending of the characteristics of both the host and the symbiont. As such, Jadzia has access to all the skills and memories of the symbiont's seven previous hosts. Jadzia holds academic degrees in Exobiology, Zoology, Astrophysics and Exoarchaeology, all of which she earned before being joined with the symbiont Dax. (*DS9 Season 1 Episode Dax)

Jadzia Dax is the station's chief science officer, and is close friends with commander Benjamin Sisko and Bajoran first officer Kira Nerys. Later in the series, she becomes involved with the Klingon character Worf, and they marry during the sixth season of the show. Her character is killed by Gul Dukat during the sixth-season finale (due to Terry Farrell's desire to pursue a role on the then upcoming TV show Becker with Ted Danson). The character of Dax re-emerges in the seventh-season premiere in the form of Ezri Dax.