Hello, Detective Hedgehog Detective Goro Nanase and his colleagues of "Akatsuka Detective Office" are based in Shimo-Akazuka of Itabashi-ku, Tokyo. The detectives take on a string of challenging cases that no one else wants to take on. Details Casts Galleries Posters Season Lists Title Hello, Detective Hedgehog Genres Drama Mystery First Air Date 2017-07-14 Last Air Date 2017-09-15 Episode Runtime 00 Hours 45 Minutes Total Season(s) 1 Total Episode(s) on All Seasons 10 Runtime 45 Production Companies Office Crescendo, TBS Eita Nagayama... Goro Nanase... Kyoko Fukada... Ranko Shidawara... Go Morita... Kyusaku Kogure... Tomoko Yamaguchi... Kaoru Kaze... Sōichi Nakaoka... Master... Moemi Katayama... Moemi... Ken'ichi Yajima... Katagiri... Yu Aoi... Setsuko Kawai... Lily Franky... Minami... Original Size (1280x720) Original Size (500x750) Original Size (2000x3000) Season 1 10 Episode(s) 2017-07-14