Sadamoto Yoshiyuki is an artist, mangaka, animator, and character designer who most famously has worked on character design for GAINAX's series and former series (including the very popular Evangelion, FLCL and the far less known Honneamise), the .hack// series, and several movies of MADHOUSE Inc. (for example Summer Wars).
https://twitter.com/Y_Sadamoto
https://twitter.com/intent/user?user_id=3292241366
http://www.doujinshi.org/browse/author/1243/Sadamoto-Yoshiyuki/
https://www.mangaupdates.com/authors.html?id=71
http://en.wikipedia.org/wiki/Yoshiyuki_Sadamoto
http://ja.wikipedia.org/wiki/貞本義行
https://www.animenewsnetwork.com/encyclopedia/people.php?id=17
http://www7.atwiki.jp/anime_wiki/pages/42.html
http://www18.atwiki.jp/sakuga/pages/458.html
