One-Shot Villains who appear only in a single part of any episodic series (cartoon or anime TV shows, etc). This kind of villain is a staple of franchises where every episode features different villains for the heroes to face. They are still considered One-Shots if any previous and/or later appearances are background, minor and/or cameo.

Note: DO NOT put villains from books, movies, webcomics and/or video games in here. In addition, if these villains appear in more than one episode including movies (with more screen time and/or character development) they should never be added to this category.