William Afton: he abused his first child (mike) and had a parasite in his head and killed ALOT of children. he stuffed them into animatronic suits and their dead souls came into the animatronic suits. They came back as animatronics and chased him. he went into a sraptrap suit and hid. it was raining and he got springloked. he was screaming "AUGHHHHHHHHH" in pain. he eventually died and the animatronics got their revinge.their revenge

Clara Afton: she was a great mother and loved her children (my au) she accidentally drove her car off a cliff. William Afton stuffed her body in a ballora suit and her dead soul came into the ballora suit. now she is ballora.

Chris Afton: he was bullied by Mike Afton because he got all the attention. on his birthday Mike Afton said "I think he would like to see Freddy" he stuffed him in fredbears mouth. unfortunately for Chris fredbear closed his mouth and smashed poor little Chris. mike ran over sobbing screaming "WAKE UP!" "WAKE UP!" that is how Chris died.

mike Afton: he was abused by William Afton and bullied Chris his whole life. he worked the night shift after the accident with fredbear. he eventually got scooped by Ennard and became a walking corpse controlled by Ennard

Elisabeth Afton: this one is easy to explain. she begged her dad to see her (circus baby) and he always said "no" she got there and got shoved into circus babys storage tank and she got scooped too. Elizabeth was in her and died. she now possesses circus baby

btw I ship ennard and mike lol I'm gay too