Dax (Star Trek)

Dax is a Trill[?] symbiont, a very long-lived slug-shaped entity that is hosted by a succession of humanoid Trills, a process called "joining". Each of the hosts has access to the memories of the previous hosts. Dax has had a total of ten hosts:

• Lela Dax;
• Tobin Dax;
• Audrid Dax;
• Emony Dax;
• Torias Dax;
• Joran Dax;
• Curzon Dax;
• Jadzia Dax;
• Verad Dax;
• Ezri Dax[?].

In an alternate future, a descendant of Jadzia's, Yedrin Dax, was shown to be hosting Dax.