Ennard

Ennard is the the final antagonist of Five Night's at Freddy's: Sister Location. He is an alternate persona for Circus Baby, and he represents her badness. He is controlled by Ballora, who also possesses his head. He is also responsible for Bite of 83, where Circus Baby killed a little girl.

History
He is built and controlled by Ballora, and he possesses Circus Baby as her alternate persona. Later, Circus Baby and the other animatronics get scooped, and Ennard is built from them all, as Ballora controls his head. He also impersonates Circus Baby, as her lines are revealed to be a result of his computing. However, near the end of the game, the technician destroys him and releases Circus Baby from his form. In a minigame, it is also revealed he possesses Circus Baby and causes her to kill a little girl, causing the Bite of 83. If you get all of the Spaghetti God Emeralds you can remove all of the animatronics from Ennard and fight Ballora.