William Afton (FNAF Books)

"And if you trigger those spring locks, two things will happen: first the locks themselves will snap right into you, making deep cuts all over your body, and a split second later, all the animatronic parts, all that sharp steel and hard plastic will instantly be driven into your body. You will die, but it will be slow. You’ll feel your organs punctured, the suit will grow wet with your blood, and you will know you’re dying for long, long minutes. You’ll try to scream, but you will be unable to: your vocal cords will be severed, and your lungs will fill with your own blood until you drown in it."

- Afton to Carlton.

William Afton, otherwise known as Dave Miller, is the main antagonist of the 2015 novel Five Nights at Freddy's: The Silver Eyes by Scott Cawthon and Kira Breed-Wrisely. He is an alternate continuity take on the Killer from the original games.

The Silver Eyes
According to the novel, Afton originally owned Fredbear's Family Diner alongside Charlie's father, Henry. Being the mechanical genius that he was, Henry created the two springlock suits, one in which William would use in his killing sprees. On Halloween, 1982, Afton donned the Spring Bonnie suit, and he kidnapped and murdered Sammy, Charlie's baby brother. While William was suspected of committing this murder, he wasn't charged; as a result, the diner ends up closing down. Freddy Fazbear's Pizza was established a few miles south of Hurricane, Utah, and once again, Afton disguises himself as Spring Bonnie, lures five children to the backroom, murders them, and hides their bodies. One of his notable victims was Michael Brooks, who later went on to possess the Golden Freddy costume. This time, Henry is also suspected of committing the murders, but, considering that the bodies were never found, he was let go. Out of grief, Henry commits suicide, and the pizzeria is closed down, and a mall was built over it.

Ten years later, a memorial was held by the parents of the late Michael Brooks, and Charlie and her childhood friends return to Utah to attend it. They meet with a security guard named Dave while they were revisiting the pizzeria for the second time; they begrudgingly take him along, but Charlie notices a series of scars on the back of his neck. Dave goes into the backroom, and he retrieves the Spring Bonnie suit, thus revealing that he was the killer all along, and he kidnaps Carlton, one of Charlie's friends, putting him in a springlock suit. When the group of friends notices that Carlton was missing, they report it to the police department, but action wasn't immediately taken, due to Carlton's habit of being a troublemaker. A police officer does go to the pizzeria to investigate, but he's immediately stabbed to death by Afton. Carlton wakes up to find himself in an old, malfunctioning springlock suit; William warns him about making any sudden movements, and he takes his shirt off, revealing more scars from a springlock incident.

Charlie and her friends return to the pizzeria to search for Carlton. William confirms that the animatronics were being possessed by the ghosts of the children, and that they were going to kill Charlie and her friends out of confusion. When told that they would also kill him, he expressed no concern, stating that as long as he had the Spring Bonnie suit on, he would be safe from the childrens' wrath. As the group was about to leave the pizzeria, Afton grabs Charlie by the back of her neck, and threatens to choke her to death. Remembering how the springlock suits operated, Charlie punches Afton in the face, thus causing the springlocks to collapse, killing him slowly. The main animatronics--Freddy, Chica, Bonnie, and Foxy-- appear, and they drag the dying Afton away. he presumably becomes Springtrap.

Personality
Most of his life outside of the franchise is unknown, but it's heavily implied that he had a very miserable existence, to the point that it felt that life owned him for his sadistic behavior. He is also rather ungrategul, having killed Henry's son despite the fact that if it wasn't for him, then the franchise wouldn't have achieved its earlier success.

Victims

 * Sammy - Charlie's twin baby brother. He was kidnapped at Fredbear's Family Diner by Afton, while he and Charlie were hiding in one of the closets.
 * Michael Brooks - Lured to the backroom of the pizzeria; friend of Charlie and the others.
 * The other four children that he lured into the backroom of the pizzeria.
 * Officer Dunn - Stabbed to death when he was trying to find Carlton.

Quotes
"I helped him create."

- Afton getting interrogated.

"They are home with me"

- Afton on the kids he had killed.

"There isn't a way put anymore. All that's left is family."

- Afton

"Oh, you're something beautiful, aren't you?"

- Afton to Charlie.

"When they awaken; the children's spirits will rise. They will kill you. I'll just walk out in the morning, stepping over your corpses one by one."

- Afton

"They don't remember; they've forgotten. The dead do forget. All they know is that you are here, trying to take away their happiest day. You are intruders. You are grown-ups."

- Afton stating his confidence at the possibility of surviving the night.

"Because I am one of them."

- Afton professing his faith in the Spring Bonnie suit.

"You are staying; I will kill this one right here, while you watch, unless you do as I say."

- Afton threatening to kill Charlie; also his final words.

Trivia

 * The manner in which Afton meets his end is noticeably different from his video game counterpart.