Purple Guy

Purple Guy (also known as Purple Man, The Killer or The Murderer) is a recurring antagonist of Five Nights at Freddy's series.

He was presumably responsible for The Missing Children Incident mentioned in Five Nights at Freddy's, but he could have possibly carried out more murders, as implied from the Death Minigames in the second game. He only appears in some of the Death Minigames of the second game and the end-of-night Minigames of the third and fourth game, but his role in the story is pivotal.

Appearance
Purple Guy is represented with the size and height of an adult man, and with his skin tone ranging from various tones of purple or pink, depending on the minigame. He is also sometimes depicted wearing a yellow accessory to his chest, presumably a badge. It isn't until Five Nights at Freddy's 3 that he retains a consistent appearance, undetailed as it may be though he has expressive eyes and a mouth that easily conveys his emotional state.

Another instance in which Purple Guy shows more detail than his other appearances is during the SAVETHEM Death Minigame, in which he has glowing, white eyes, a yellow object to his chest which resembles a badge and holds a purple object, which is speculated to be a phone or a hand crank.

Personality
Because Purple Guy does not speak nor have a role outside of minigames, his story is mostly told via silent actions within retro-graphics, or by reading between the lines throughout the games. Between his minigame presence and piecing together information gleaned from the phone calls as well as the posters in Five Nights at Freddy's, the community has been able to discover lots of hidden information about Purple Guy.

Purple Guy is the presumed murderer of the five children that sparked the downfall of Freddy Fazbear's Pizza and started the chain of events that leads players through the series. Judging by his actions and appearance within the minigames, Purple Guy is cruel and cold-blooded, taking pleasure in his crimes with an unceasing smile. It isn't until he is confronted by the ghosts of the five kids that he shows any other emotion - fear and possibly anger. His motives are unknown and cryptic though his actions ultimately lead to his downfall.