Armored Police Metal Jack (Japanese: 機甲警察メタルジャック, Hepburn: Kikō Keisatsu Metaru Jakku) is a Japanese animated TV series produced by Sunrise, TV Tokyo and I&S BBDO. It was directed by Hiroshi Matsuzono and Kiyoshi Egami, with Hiroyuki Kawasaki handling series scripts, Yorihisa Uchida designing the characters, Yukihiro Makino designing the mechanical elements and Yasunori Iwasaki composing the music. The series was broadcast by TV Tokyo affiliates on the Monday 5:30PM time slot and aired weekly from April 7 to December 23, 1991, lasting 37 episodes.Metal Jack was originally planned as a sequel to the live-action tokusatsu show Dennou Keisatsu Cybercop, but due to complications with the show's production, it was made into an animated series instead without any official ties to Cybercop. However, due to low viewership, the length of the show's run was shortened by thirteen episodes. Head writer Hiroyuki Kawasaki would later recycle some of the same situations from Metal Jack in Brave Police J-Decker. The show was also the debut of Nobutoshi Canna (who acted under the birth name of Nobutoshi Hayashi).