Glitchtrap is an AI designed to mimic the personality and action of William Afton, who is malevolent, sadistic, cruel, psychopathic and able to hide his true nature under a metaphorical mask of politeness. He isn't insane in any way, and is calm and collected at all times, rarely raising his voice or losing his cool. Has a large ego and is an expert manipulator and takes the form of an anthropomorphic yellow rabbit costume. Unable to form facial expressions due to his mask.