Foot Clan

The Foot Clan is the main antagonist of the entire series along with the Kraang and have often tired to destory the turtles but always failed and their leader is Shredder.

​Trivia:

 * The Foot Clan was seemingly the main antagonist of the series, until The Dark Water have proved to be the true main antagonists, having manipulated The Foot Clan along with everyone else to further their own goals and having much bigger plans than any other villain.
 * The Foot Clan offered to help the Turtles to destroy The Dark Water.