Hideki Okamoto (冈本 英树, Okamoto Hideki) is a Japanese anime director born in the city of Nara, Nara Prefecture. He has also worked under the name Yōga Seta (瀬田 用贺, Seta Yōga).
Takawo Yoshioka (吉冈 たかを, Yoshioka Takawo) is a Japanese screenwriter for anime. He also uses the alias Yoshio Takaoka when writing for OVAs, mostly erotic ones.