William Afton

Crimes: Murdered multiple children, including Henry Emily's daughter, and created animatronics as death machines. William Afton is the main antagonist of the Five Nights at Freddy's franchise, a co-founder of Fazbear Entertainment, and a serial killer responsible for numerous child murders, leading to the haunted animatronics. Known as the "Purple Guy," he is a cunning, sadistic, and highly intelligent man obsessed with immortality, whose actions drive the series' plot, culminating in his transformation into the monstrous Springtrap after being trapped in a springlock suit. He is the father of Michael, Elizabeth, and the Crying Child.