Cassander Tadrin was a male space explorer who discovered a star and planet in what became the Cassander system one hundred years before the fall of the Galactic Republic. He then went on to form the colony which would expand to become the Cassandran sectors. Prior to the discovery he was the head of a giant, privately held Esselian conglomerate that controlled 24 agriworlds. He was most likely related to the Tadrin family.