Commander of Nerv and Shinji's estranged father. Gendo Ikari has been given extra-legal authority by the UN to defeat the Angels by any means necessary; and he has yet more powerful benefactors with their own, darker goals in mind. But it is his own, personal goal of reuniting with Yui which he will stop at nothing to achieve. 

 From: https://wiki.evageeks.org/Characters_(Portal)