Ochiai

Ochiai (落合) is a scientist and member of the Immortal Ship Committee (who lived centuries before the main events) and was the foremost researcher on the Gauna's behavior and biology. As a scientist pushing the envelope of what was possible, he tried to create a Chimera 100 years prior to main events and nearly destroyed Sidonia. After he was arrested, his body was destroyed but his mind was kept inside a neural interface; his body was cloned and made as an assistant to Kobayashi. Without the original's memories, the clone was used as a medium to reconnect to Ochiai's mind whenever Kobayashi needs to speak with the original; there are three Ochiais (the original sealed mind, a nematode agent, and the clone) with different objectives.