Naoto Hosoda (细田 直人, Hosoda Naoto, born in 1976) is a Japanese animator, character designer, animation director and director. Formerly he belonged to AIC, J.C.STAFF, Studio Hibari and WHITE FOX.
Katsuhiko Takayama (高山 カツヒコ) is a screenwriter. He is a member of the Writers Guild of Japan. His real name and old name is Katsuhiko Takayama (高山 克彦).