The Puppet

The Security Puppet was made to keep children in Fredbear's Family Diner safe. However, when Henry's daughter was locked outside in the rain, Charlotte was killed by William Afton, shown in the Take Cake to the Children death minigame from Five Nights at Freddy's 2. Security Puppet then goes outside, in the rain, after the child. After taking water damage from the rain, it finally finds the child's corpse. Security Puppet will then collapse next to the child and the mini-game ends. It is later revealed that the child (Henry's daughter) possessed the Puppet.

At the first restaurant, William claimed his first victim in the shape of a little girl who was locked outside from a party and left her body for others to discover.

The girl rose from the grave through blind hatred and began to search for the killer and at some point, she came across one of the many Freddy Fazbear's Pizzeria's and possessed a puppet which was which was created for the purpose of giving prizes to children in the Prize Corner, eventually the killer came back to his hunting grounds and claimed 5 more victims.

The Puppet, knowing what it felt like to be killed and being compassionate by nature, brought the victims back to life by putting the bodies and souls inside the bodies of Freddy Fazbear, Bonnie, Chica, Foxy and the already out of order Golden Freddy (who somehow developed the power to become a spirit).

But due to smelling due to the decaying bodies stuffed inside, the originals were placed inside the storage room and replaced by the Toy animatronics, however, these new robots would not stay untainted for long, after the first guard (before Jeremy Fitzgerald) started and finished his first and only night watch week,

The Puppet presumed that William had returned and tampered with the Toy animatronics by messing with their security systems and made it so they would be aggressive to all forms of staff and customers but not to kids. Eventually, Jeremy Fitzgerald started his first week.

With Phone Guy guiding him, telling him of the tensions and mysteries occurring during the daytime while expressing his uneasiness with the Puppet (perhaps knowing it was possessed) during the daytime before the sixth night the Killer presumably returned and used the Golden Freddy or Spring-Bonnie suit and claimed 6 victims.

The Puppet acted quickly and stuffed the victims inside the Toy robots (including Balloon Boy) but due to already being tampered with by the Puppet the Toy animatronics were hostile to everything and messed up, The Phone Guy informed Jeremy of this and informed him that he and the other staff were closing the pizzeria to fix the robots, after Jeremy miraculously survived the sixth night Fritz Smith took up the mantle of the night guard and fended off the crazed Toy and Old animatronics for six hours of the 7th night before being fired for bad odor.

The Toy animatronics were pulled from show acting and scrapped, with the Old animatronics retaking their spotlight.

Sometime between the events of Five Nights at Freddy's 3 and Freddy Fazbear's Pizzeria Simulator, Marionette was captured by Lefty as a part of Henry's plan to get rid of the remaining possessed animatronics and eventually wound up in the alley behind The Pizzeria trying to get inside.

It is also confirmed in the Completion ending that the Puppet, was now possessed by Henry's daughter, was giving life to the other murdered children from The Missing Children Incident and restoring their lives by making them animatronics as well.

In the Insanity ending, blueprints for Lefty which revealed that it was made to trap the Puppet. This is evidenced by the acronym of its name (Lure, Encapsulate, Fuse, Transport, and Extract) and certain specs, particularly the False Sensory Output for a security bracelet and the Dream Wand to play the lullaby. The blueprints are credited to Fazbear Entertainment, Inc. Along with Scrap Baby, Molten Freddy, William Afton (Who was sent to hell), Henry and Michael Afton  were all burned in the fire and set free.

The Puppet has a white face with black, hollow eyes (aside from its jumpscare and a small in-game cutscene, in which it gains small, white pupils). Its face is similar to that of a Pierrot, with rosy red cheeks, purple stripes that stretch from the bottom of its eyes to the top of its mouth, and red lipstick painted on in an exaggerated pucker.

Its body is somewhat reminiscent of a sock monkey's, with its round, oblong shape, thin waist, three white buttons, rounded hands that feature three spindly fingers each, and white stripes on the wrists and ankles, along with a thin, long neck. It has no feet, but its legs are tapered to a point. It has neither hair nor head accessories.

Lefty's upper head looks similar to Toy Freddy's, but his lower jaw is separated and connected with metal rods to the upper part. He has the rosy-red cheeks like the Toys from FNaF 2, and his top hat and bow tie are red. Like the other Rockstar animatronics, he has a star on his grayish chest. He holds his gold microphone in his left hand, fitting the name "Lefty". His left eye is small and black, while his right eye is normal with yellow pupils. His knee pads are also rosy-red. If one looks closely, they can see the Puppet inside of Lefty, which features on a secret death screen.

Overall, it is a black and red version of Rockstar Freddy without his left eye and holds his mic in his left hand as well. He is also a member of the Rockstar Assemble, a band including 'Rockstar' versions of Bonnie, Chica, Foxy, and Freddy.