Yasuko Kobayashi (小林 靖子 Kobayashi Yasuko, born April 7, 1965) is a Japanese anime and tokusatsu drama screenwriter who has been involved in various television shows throughout her career, including the creation of the Roboot series of 1973's Casshan, Casshern Sins.
Opon starting the Casshern Sins series, Yasuko was well informed of the Casshern Franchise. She believes that Casshern Sins is more of a "re-animation" then a remake, differing in style, themes, premise and plot. Yasuko wrote the Casshern Sins story as a completley different series then the original looking to say "forget that story, this one's better". She worked with Director Shigeyasu Yamauchi to animate and produce Casshern Sins through Madhouse, Tatsunoko, Hakuhodo DY Media Partners, Showgate, Geneon Universal, Madhouse and FUNimation Entertainment, from 2008-2010.