Adin

From Memory Alpha, the free Star Trek reference

Adin was an Ilari, and doctor to the tyrant Tieran.

In 2373, Adin, Tieran, and a female named Nori were beamed aboard USS Voyager just before their ship exploded. Adin was unable to save Tieran, who died of his injuries, but not before he transferred his consciousness into Kes.

Kes/Tieran became paranoid due to the stress of the mental conflict between their minds. Adin tried to convince Tieran to break control over Kes. Adin was fearful that there would be irreversible damage done to his mind if he did not. Tieran ended up killing Adin, fearing that he would try to break the link. (VOY: "Warlord")

Adin was played by actor Anthony Crivello.