The council of twelve that governed Elysia, a society formed by the descendants of crews from many species trapped over centuries in the Delta Triangle region.
The Elysian Council rules Elysia in the animated episode The Time Trap. Ships that vanish in the Delta Triangle arrive in a pocket of space from which none has escaped, and over a thousand years their crews, from 123 species, have built a single peaceful community there.
The council that greets the Enterprise and Kor's Klingon cruiser Klothos is headed by the Romulan Xerius, with the Orion woman Devna as interpreter of its laws and the psionic Magen able to sense intentions. Its one firm rule is that violence between ships is forbidden.
Kirk and Kor link their vessels to break free together. Kor's crew plant an explosive to destroy the Enterprise afterwards, but Magen detects it and the council's warning reaches Kirk in time.