Yenndo is a Yellow Eyed Endo version of Funtime Freddy. He is possessed by Kalian Westbrook.

He is a mysterious endo who prefers to be alone, he mostly resided in dark storage rooms or the parts & service. He is also a brilliant hide and seek player, almost as if he walks into the dark and can just... disappear. He has two personalities. Not many know of his existence, since originally he was a prototype model of Funtime Fredbear, which never came to be.

1) The Soul, Kalian. He is a misunderstood kid, he wants to be friends with everyone else. But feels like he doesn't fit in with any of the Funtimes.

2) Yenndo. He is a mysterious Endo, who will eventually become a Bar Tender in the Pizzeria. He listens to what people have to say, while deeply hoping he can befriends everyone here. The Funtimes alike.