Gregory is canon.A 12 years old kid stuck in the Pizza Plex for a long time after his parents left him there.He gets cautious of the other animatronics because of Vanny's control over them,even cautious of Freddy.

Gregory is walking through the Pizza Plex when suddenly he feels dizzy and passes out.When he regains counciousness,he sits up and looks around confused, noticing that he's not in the PizzaPlex anymore,but in a another place?He stood up and looked around his surroundings.It was like the inside of a pizzeria,but old-fashioned.There were tables with party hats in the middle of each of them and a stage,with two old-looking animatronics.Then Gregory realized he somehow travelled in time and went to the past.He was in the pizzeria called Fredbear Fazbear's dinner and the year was possibly 1983.

He then heard something and looked in the direction of the sound,noticing a boy under one of the tables,crying. (You're Gregory.)