Thaddeus Montgomery

Thaddeus Montgomery (AKA the Infantata) is a being crafted from the pieced together remains of Charles and Nora Montgomery's child. He is a character in the first season (dubbed by fans "Murder House") portrayed by Benjamin Woolf. Though never referred to as "Infantata" or "the Infantata" in the dialogue of the series, this name has been given via the credits and by members of the series' production during interviews.