Springtrap

is the main and only physical protagonist in Five Nights at Freddy's 3. He is a massively-damaged rabbit animatronic/springlock suit, as well as the only protagonist that can kill the player and give them a Game Over, as the phantom animatronics can only jumpscare the player and impair their vision and/or hearing. His suit traps and is possessed by the decaying corpse of William Afton.