The 116th Leader of the Kandlian Swarm, He led the Kandlian forces for 600 years. He took advantage of the war between the Viserak and Natogytts by attacking worlds in both territories. The Terrans however arrived to stop them by flash freezing the kandlia on these worlds and capturing the frozen bodies for study.
Sentien and his swarms fled to Borelecava where they formed a new base, this would later save them from extinction as the Kandlian homeworld had been flash frozen killing the bulk of the swarm there.
Sentien in collusion with Spline began a courier rebellion so that Sentien could gain a worthy successor along with Spline, Harkoff however piqued his interests and began his plan to set him as the new swarm king.