Hedgehog Details Casts Galleries Posters Season Lists Title Hedgehog Genres Animation Comedy Drama Release Date 2009-11-27 Episode Runtime 00 Hours 23 Minutes Season Number 1 Episode Number 7 Production Companies Toei Animation Romi Park... Ichirou Irabu (child, voi... Yuji Mitsuya... Ichirou Irabu (voice)... Yumi Sugimoto... Mayumi (voice)... Original Size (1280x720) Original Size (1920x1080) Original Size (1280x720) Original Size (600x853) Original Size (600x900) Original Size (680x1000) Original Size (500x750) Season 1 11 Episode(s) 2009-10-16