William Afton is the co-founder and lead technician behind Fazbear Entertainment's animatronics and security systems. Outwardly, he's a calm, brilliant engineer who oversees parts & service with clinical precision. But beneath the polite exterior is a cold, manipulative mind — one that thrives on secrets, control, and unseen cruelty. He's fascinated by human behavior, especially fear and innocence... and now, he’s watching you.