Name: Kouzou Fuyutsuki
Title: NERV Vice Commander
Kouzou Fuyutsuki is the Vice Commander of Special Duty Organization NERV. He is most often seen at Gendo Ikari's side, and is the closest thing Gendo has to a confidant.
Prior to the catastrophe of the Second Impact, Kouzou was a professor of Metaphysical Biology at Kyoto University in Japan, where he met Yui Ikari and Gendo Rokubungi (now Gendo Ikari). While he was very fond of Yui (even considered her among his most talented students), his impression of Gendo was less than positive. In fact the two only met when Gendo asked to be released from jail into his supervision following a violent bar brawl. The fact that Kouzou has for a long time harbored feelings for Yui (who became romantically involved with Gendo) also did not help matters.
Following the Second Impact, Kouzou worked as an unlicensed physician tending to the victims of the catastrophe, and was later recruited by the United Nations to investigate the cause of the incident. This eventually leads him back to Gendo Ikari, director of the Artificial Evolution Laboratory. During this time he also finds Gendo and Yui to be married, and with child. Although Kouzou's inquiry is cut short, the incident and its subsequent cover-up becomes an obsession for him, and he continues to investigate on his own.
By 2003 Kouzou confronts Gendo with evidence of the cover-up, charging him and his SEELE backers to be responsible for the incident. In response Gendo calmly leads him into Central Dogma, where he introduces him to Naoko Akagi, a highly renowned bio-systems engineer hard at work on the MAGI Super-Computer System. Naoko and Gendo then proceed to lead Kouzou into Terminal Dogma, where they show him the incomplete Evangelion Unit-00. Kouzou is shocked at the sight, but agrees to join when invited by Gendo to help create a new genesis for mankind.