The Romulan who presides over the ruling council of Elysia, a peaceful society of 123 species trapped in the pocket universe of the Delta Triangle.
Xerius is a Romulan who appears in the Animated Series episode The Time Trap. He leads the Elysian Council, which governs the descendants of crews whose ships have been drawn into the Delta Triangle over the course of a thousand years.
When the Enterprise and Kor's Klingon battlecruiser Klothos fall through into this pocket of altered time, Xerius has both captains brought before the council. He explains that escape is believed impossible, that Elysia tolerates no violence, and that each captain will answer for the conduct of his crew.
Xerius does not stand in the way when the two ships attempt to break out by linking their engines. When the council's telepath senses that the Klingons have hidden an explosive aboard the Enterprise, he warns Kirk in time for it to be found.