Vlict Kenka

Vlict Kenka was a Klingon active in the mid 23rd century. He was a member of the Kenka family, a Klingon family descended from the Klingon nobility whose holdings included the Klingon world of Hrakkour. An officer in the Klingon Defense Force, he held the rank of Admiral by 2269.

In the mid 2260s the being Quetzecoatl - who had visited Earth several hundred years earlier - came to Hrakkour and influenced the population of the world to adopt a more peaceful lifestyle. In response Admiral Kenka committed genocide, killing the entire population of Hrakkour. Kenka then forced the Federation to hand Quetzecoatl over to him for trial on Hrakkour.

During the trial, Captain James T. Kirk convinced Admiral Kenka to allow him and his landing party to undertake several trials, with the promise that if Kirk and his crew passed the tests then Quetzecoatl would be freed. During these trials, Kirk and his crew came across Bialbi - an extremely powerful alien who had been living on Hrakkour. Transporting Kenka to his chamber, Bialbi informed Kenka that he was sentenced to death for carrying out genocidal activities on Hrakkour. Captain Kirk intervened on Kenka's behalf, and Bialbi relented - ordering Kenka to leave the Hrakkour system and never return on pain of death. Kenka was further informed that no Klingon vessels were to return to Hrakkour. (Star Trek: 25th Anniversary)