
Quick answer — Takashi Okazaki worked on Summer Wars (OZ Character Design), Afro Samurai the Movie (Original Creator), Afro Samurai (Original Creator) and 4 more anime.
Takashi Okazaki worked on Summer Wars (OZ Character Design), Afro Samurai the Movie (Original Creator), Afro Samurai (Original Creator), Afro Samurai: Resurrection (Original Creator), Star Wars: Visions (Character Design), GARO -VANISHING LINE- (Original Character Design), Batman Ninja (Character Design).