The Puppet is the unknown lord of Freddy Fazbear's Pizza. He is a tall, thin, black-and-white pin-man with purple tear tracks down his cheeks. He was created as a new body for the soul of the first dead child, by a worker who was possessed by said soul. The soul can detach himself from the body, appearing as a small grey-colored child with dark grey tearstains down his cheeks. He is the one responsible for the demise of both Vincent, his killer, and Fritz Smith, who saw the murder and decided to send false information to the night guards at the various pizzerias.
The animatronic puppet itself can transform, along with the soul, into a sad-looking child with a tearstained face, a black-and-white striped shirt, black jeans, black hair, grey eyes, and a (barely visible) stab wound where his heart should be.