Simon

William Afton, better known as Simon, is a murderer, and the business man of Bear Brothers Entertainment. He is the step-brother of Jeremy Fitzgerald and the son of Arthur Afton.

Story
William was born in the 1970s, where he was trained by his father to murder, collect remnant, and do taxes. In 1979, William changed his name to Simon Fitzgerald, and joined the Fitzgerald family alongside his father. The same year, Arthur went missing, and Jeremy's father was killed. Jeremy and Simon were raised by Jeremy's mother. In 1983, Simon committed murder for the first time, killing an innocent child. After he was found to be not guilty, he convinced his foster family to change their last names to Glade. In 1985, Jeremy and Simon were hired by Jonathan Bear to work for Bear Brothers Entertainment. In 1986, Orton's Diner and Playland was opened, and Simon fooled Steven into adding malicious features into the animatronics, causing 3 children to go missing within the building. The diner was shut down, and new animatronics began to be made. In 1987, Simon began to torture Steven into adding malicious code and features to the Remade Animatronics. In 1988, after Gavin attempted to kill Jeremy, Simon convinced Gavin to help with an experiment, causing Gavin to be trapped in the Prototype Remade Freddy suit and become Left Behind. Simon killed Steven out of anger later that month. That same year, Jonathan and Jeremy attempted to trap Simon inside Remade Springbonnie, but it failed, and he put himself back together. He trapped Jeremy within the Fredbear suit, and gained more furious at Jonathan. Jonathan trapped him inside a spare Springbonnie suit on Floor 20, keeping him there for decades. In 1990, Jonathan returned and Freddy Fazbear was controlled by Simon to murder him. In 2020, Jeffery freed Simon from his shackles, and he ran away to Freddy Fazbear's Underground Circus. Once there, he took the elevator out, trapping the remade animatronics and Left Behind inside, who had followed him. He was eventually discovered by Abomination, and trapped within The Abomination's Lair. He was burned to death by Henry inside.