Billy (FNAF)

Billy, also know as Bill by his friends, is a character that appeared in the first and second season of the FNAF series.

After his death, he became the animatronic, Bonnie.

"First Night"
Billy first appeared alongside Greg, Sally, Benjamin and Alexandra at their best friend's (Roxy Lane) birthday party.

Billy only wished Roxy a happy birthday and greeted Manny Lane then he mostly talked with Sally. He is seen later leaving the diner with Greg when Gamer Boy announced that there was a malfunction in the animatronic's suits.

"Five Children"
Billy is seen sitting in the diner a day after Roxy's birthday. If Manny or Samantha Lane speaks with him, he reveals that he and the others came back for breakfast and to see what everyone is hiding behind the backroom. Manny/Samantha will immediately warn Billy not to enter the room, but Billy doesn't believe them and tells them to stop telling him what to do.

He goes into the backroom with Sally, Greg, Benjamin, Roxy, Alexandra and Jeremy Fitzgerald (Determinant) to follow someone into the backroom.

Before he could do anything, the man closes the door and starts to kill Greg. Horrified, Billy starts to struggle opening the door while Manny/Jeremy tries to stop the man. The man starts to walk towards Sally and Billy ran and tackled the man to the ground. The man easily kicked Billy off and stabbed him in the abdomen.

"Lost Souls"
Billy's body is seen inside The Puppet's gift box when Manny learns the truth about what really happened with Billy and the others after they were killed.

"Bloody Pizzeria"
In Roxy's nightmare, she watches how brutally her friends were slaughtered by the man, at some point looking at Billy bleeding out from his stomach wound and wakes up when he transforms into Bonnie.

Killed By

 * Sally (Indirectly Caused)
 * Purple Guy

Allies

 * Benjamin
 * Roxy Lane
 * Samantha Lane
 * Manny Lane
 * Alexandra

Enemies

 * Purple Guy

Season One

 * "First Night"
 * "Five Children"
 * "Lost Souls" (Body Only)

Season Two

 * "Bloody Pizzeria (Dream Only)