New Tokyo Ronin

New Tokyo Ronin is an American animated action-adventure TV series produced by Nickelodeon Animation Studios. The series was co-created by Ciro Nieli, showrunner of Nick's Teenage Mutant Ninja Turtles, and Bryan Andrews, storyboard artist and co-creator of Sym-Bionic Titan, and ran from August of 2018 to February of 2023. Most of the series is set in the fictional New Tokyo City, which is a composite city of Tokyo and New York City and has a mix of Japanese and American people and culture.

The series focuses on half-Japanese high school student, Jake Amamiya, who comes into possession of the magical blade Masamune (named after the Japanese swordsmith) and becomes the new protector of New Tokyo, who the media dubs "The Ronin". Along the way, he faces off against countless enemies, such as superpowered criminals and people who have been mutated into beasts. But before he can truly defeat his enemies, Jake must learn discipline, honor, and the ways of the samurai.

Main

 * Jake Amamiya/The Ronin (voiced by Kaiji Tang) - the main protagonist of the series who is a high school student attending Musashi High and lives a double-life as the mysterious protector of New Tokyo City, The Ronin. He begins the series cocky and snarky but slowly learns discipline and patience. He wields the magical Masamune Blade, which is able to extend to any length and grants Jake several superhuman abilities.
 * Kenko (voiced by Cristina Vee) - Jake's companion who is the spirit of the Masamune Blade, represented by a little girl. She is very dry-witted and has a love/hate relationship with Jake, who she sees as immature and stupid. Later on, she warms up to him but still takes jabs at him on occassion.

Antagonists

 * The Entomologist (voiced by Jeffrey Combs) - the main antagonist of the series who is a well-dressed man with solid white, slightly glowing skin. He is cold, calculating, and incredibly intelligent. He is also very powerful, being a master of mysticism who is able to use magic to somewhat bend reality. Throughout the series, he turns several people into monsters (Yokai) using magical wasps of his own creation.