Layton Mystery Detective Agency: Kat's Mystery‑Solving Files The story is set in London and follows Katrielle as she solves mysteries with her talking dog Sherl. Details Casts Galleries Posters Season Lists Title Layton Mystery Detective Agency: Kat's Mystery‑Solving Files Genres Animation Comedy Mystery Kids First Air Date 2018-04-08 Last Air Date 2019-03-31 Episode Runtime 00 Hours 24 Minutes Total Season(s) 1 Total Episode(s) on All Seasons 50 Runtime 24 Production Companies LIDENFILMS, TFC Kana Hanazawa... Katrielle "Kat" Layton (v... Kyousuke Ikeda... Noah Montoir (voice)... Hibiku Yamamura... Geraldine Royer (voice)... Jurota Kosugi... Sheri (voice)... Soma Saito... Luke Triton (voice)... Yohei Tadano... Darjeeling Aspoirot (voic... Koichi Yamadera... Professor Hershel Layton ... Original Size (1920x1080) Original Size (1280x720) Original Size (1280x720) Original Size (680x1020) Original Size (720x1005) Original Size (667x1000) Original Size (700x1050) Original Size (536x750) Original Size (700x1050) Original Size (1000x1500) Season 1 50 Episode(s) 2018-04-08