Proconsul Derrimus Kalistine governs the Serrofus system on behalf of the Imperial Combine, from the annexed world Serrofus Major. He is an uncompromising and ambitious ruler, with xenophobic tendencies which he does little to hide (→LOTD).
Kalistine's wish was that — under his leadership — Serrofus Major would become the major cultural and production centre of the empire, rivalling Damastion, Ramm Stallahad, and Maidre Shalleon. He was quite prepared to trample on the indigenous Mastalekt to achieve that goal, and used a narrow-minded and perhaps even bigoted interpretation of the rules of governance while pursuing it. One of the first phases in his plan was the clearance of the meadows, a huge area of land adjacent to the capital in which grew vast fields of a plant considered sacred by the Mastalekt.
It was his tendency to favour humans over the Mastalekt which the entity known as Voice sought to exploit for its own ends. Using the Rasa infiltrator Herik Pammon, Voice recruited the unwitting Maber Castigon as well as a man named Collis. It then had both men orchestrate the intensification of racial tensions in the capital city of Serrofus Major (→LOTD).
As well as allowing Castigon to complete his objective of killing a Shard named Jidian Tarrow, which Kalistine witnessed, the civil unrest which resulted from these actions helped to advance Voice's plans directly. Just as Voice intended, Kalistine became incredibly aggressive in his efforts to pacify the population, and gratefully accepted several full garrisons of MAGA troops on the surface of his planet (→TRD).