"It's time to really get the party started!" (character descriptions in comments)

1st Image: Richard and Lukas Fazzaroli

Richard is considered a kind older man, and was the original founder of FazLabs (what would be "Fazbear Entertainment" in this AU). He created the entertainment sector if the tech company to hopefully reach out to a broader audience, but "The Bite" would but a dent in his reputation.

It would cause him to temporarily retire the animatronic models and go for a more "human-like" approach to the characters (i.e. human actors).

Lukas is Richard's son, and took over the company once his father retired. Finding Ms.Afton's plans for the APM, he uses this to his advantage and causes a full blown rabbit hole full of missing persons reports (whoopsie!). In the end, he does get jailed for his crimes.

2nd Image: Wendy Afton and Mrs.Emily

I won't detail Afton here, but Mrs.Emily (whom I have no first name for yet) is the mother of Charlie Emily (the Marionette) and petitions the movement for finding the people who have gone missing due to FazLabs, including her son.

They do eventually reunite, but their time together doesn't last long...

3rd Image: Vincent and Vinnie

Vincent is the head security guard for the Pizzaplex (before it all burns down), and thanks to Glitchtrap's intervention, becomes Vinnie when given the Holograph Card. He means no ill will and only intends to do his job, but hates the idea of being controlled by the otherworldly entity.

He will escape the ruins unscathed, and adopt Gretchen (replacement of "Gregory") as his own in the end.

4th Image: Michelle Afton and Jim Rhodes

I won't detail Michelle here, as it's obvious who that is, but Jim Rhodes is a police detective who puts in all of his time and effort into the case involving the missing people surrounding FazLabs and its employees.

He would meet Michelle during one of his investigations, and with both of them having the same desire to find Wendy after her disappearance, team up in their endeavors. This causes a short episode of love tension, but Jim is unfortunately offed by an unknown source (I blame Lukas, but whatever...), leaving a rattled Michelle to lead the rest of the "resistance" charge on her own.