Looking for episode specific information Matantei Loki Ragnarok on episode 12? Then you should check out MyAnimeList! The Mythical Detective Loki Ragnarok (魔探偵ロキ RAGNAROK, Matantei Roki RAGNAROK?, lit. Demon Detective Loki: RAGNAROK) is a manga by Sakura Kinoshita published from August to October A television anime based upon the manga series ran for 26 episodes from April 5, to September 27, in Japan.. The series originally ran in the magazine Monthly Shōnen Gangan . Oct 18, · The Mythical Detective Loki Ragnarok Cast. Loki (Child) voiced by Shannon Emerick and 1 other. Mayura Daidouji voiced by Kira Vincent-Davis and 1 other. Ryusuke Yamino voiced by Illich Guardiola and 2 others. Narugami voiced by Chris Patton and 1 .