Jogon of the Ningyo is a silverfish-themed member of the Earth Condemnation Group Yuumajuu and is the main antagonist in episode 27 of the 2010 TV series called Tensou Sentai Goseiger.
He is voiced by Taiki Matsuno who previously voiced Pierre, a Clock Org, Amoreian Baachiyo, Hades Beastman Garim the Gremlin, Rutsu, a Vacuum Banki, Sunasusuri and later voiced Debo Batissier, a Chair Shadow and Yoshi Urazer.
An old friend of Kinggon, Jogon is able to latch special seashells onto people which target a flaw in them and makes them believe a person is saying it behind their backs. While infecting humans with it, he fights against the Goseiger where one of the shells attaches to Agri, making him become doubtful of his own position within the team. At the same time, another shell is taken by Buredoran and attached to Kinggon, making him think that Makuin merely sees his partner as muscle and doesn't trust him as part of his own schemes. Eventually when Agri gets over his problems, he launches an assault on both Jogon and Kinggon as Super Gosei Black, crushing them before the team joins in and awaken their new finisher: Super Gosei Dynamic.
After being grown by Buredoran, a combination of the Goseiger and Gosei Knight work together to fight Jogon, with Agri smashing it with a Snake Headder kick before finishing it off with Landick Gosei Great.