This character occupies as the solo performer for kid's cove in fnaf 2. They are also known to have one of the largest gender controversies in the franchise due to not having a straight answer from Scott.
Mangle
uh hello? hello hello? Uh, what are you doing there? didn't you get the memo? The place is closed down, at least for a while. Someone used one of the suits. We had a spare in the back, a yellow one. Now none of them are acting right.
FNAF 2
This secret was first discovered by Matpat during one of his theory videos on FNAF 3, Upon successfully completing a full run through the main game and completing the 6th night to achieve the nightmare ending. If you brighten up the newspaper, this secret will appear.
Springtrap survives the fire
T̸̪̑h̶͉̏i̵̳̓ș̶̽ ̶̜̊h̶̨͑i̷̚ͅs̵̰͘t̸͈̚o̶̬̎ṙ̸͙i̸̦̓c̸̤̋ ̶̮̏m̴̗̚o̶̎ͅm̵̰͋e̶̱̓n̵̆ͅt̴̢̛ ̵̝̈́m̴͎̽a̷̱̐r̷͈̐k̵̺̏s̶̭͑ ̷̟̆t̷̟͛h̷̻̾ę̷͋ ̵͇̽v̸̯̕ę̶̃r̸̢̆y̵̘̓ ̶̫̌f̸̞̾i̴̟͒r̸̰͘s̵͍̀t̴̠͊ ̵̫̎e̴͉͝v̵͎͒è̶͕n̵̲̂t̵̖͝ ̴͎̈́t̸͈̏ọ̴͋ ̶͚̒b̶̼̄ḛ̶͗ ̵̛̫p̶̜̃r̵̪͑ȩ̸͌s̸̡̀e̶͖͘n̶̘̈́t̵̰̔ȇ̶̻d̸̩̎ ̵̬͠ị̵̓n̵͚͗ ̶͂ͅF̴̝̓N̷͖̽A̴̧̎F̵̻̃ ̵̩̅1̸̪̍.̵͈̅ ̷̱͒Ị̴̕n̴̡̕ ̷̧̿o̷̩͝r̷̙̉d̴͜͝e̶̲͆r̵͎͐ ̵͉͌t̸͉̃ő̶̼ ̷̯̃f̸̱͘ḯ̷̡n̷̘͛d̸͍̓ ̸̳͑ĭ̸̟t̸̳̀,̵̫̒ ̴͙͗y̶̳̆o̶̫͗ǔ̶̧ ̶̞̉m̵̫͐u̶̖͌s̵̲̉t̵̟̔ ̸͚̍p̵̣͋l̴̻͗ȃ̴̠y̴̳͑ ̸̹̀t̶͓̂h̶̟̚r̵̬͐õ̴͖ȕ̸̖g̴̯͂h̴̺̊ ̵͉̉t̶̂ͅh̴̭̔ė̶͙ ̶̄͜ġ̸̞a̴̡͠ḿ̸̨e̷̥̚ ̷̼̑a̷͉͠ṅ̶͍d̸̛͜ ̶͕̕c̶͕̀o̶̲͑n̴̻̓s̸͎͑i̶̛͓ṡ̷̟ţ̸̏è̷̹n̴͙͌t̸̙̾l̸̘̒ỳ̴̘ ̵̲̈c̸̜̊h̷̜̑e̴̥̾c̵͇̓k̶͓͒ ̴̟͝ą̴̉ ̴̝͠c̵̟̅é̶͈ṟ̴͒t̸̨͠ȧ̷̯i̷̲͠n̸͎̂ ̸̟̕p̸̲̄õ̶̤ṣ̶̏t̷̳̑e̸͓͐r̴̖͛.̶͙̌
The missing children's incident
I always come back
Springtrap/Burntrap
This character made her first debut in FNAF 4, she is also the current spirit who occupies the sister location animatronic 'Baby' then later 'Ennard' and 'Scrap baby' by the end of Pizzeria simulator or otherwise known as FNAF 6.
Elizabeth
"Uh, hello? Hello, hello! Uh, there's been a slight change of company policy concerning use of the suits. Um, don't. After learning of an unfortunate incident at the sister location, involving multiple and simultaneous spring lock failures, the company has deemed the suits temporarily unfit for employees."
FNAF 3
This secret occurs when playing one of the game over mini games in FNAF 2. When playing the 'SAVE THEM' mini game after getting a game over, you are tasked with giving gifts to the kids and further giving life to the spirits killed by afton. However, after giving the last gift to the spirits, this secret will appear for exactly 1 freeze frame before getting the full game over screen.
The spirit of golden Freddy
This historic moment begun as a sequel to FNAF 1 and a prequel to FNAF 3, alongside the birthplace of a certain animatronic who has managed to cheat death not once, not twice, but a total of four times.
Springtrap's origins
Uh hello? Hello? Hello? Uh, welcome to your new summer job at freddy fazbears pizza.
Phone guy
Ȉ̵̩͕͇̭͇̀͂̌͋͂ͅ ̷̮̈́͗̄͂̚à̴̤̰̬͇̘͈̰͋̒m̵̰̼͍̘̝̀̈́̐͐͌̏ ̷̳̳̇̌́̈́̽̀̆ṱ̸͋̓̊h̵͙̱͇͗́̋͘è̷̡̜͊́ ̴̖̬̘̒̈̽̊͘͜ͅǫ̷̖͇̱̱̦̑ǹ̷̨̝̤͔̘̻̺̏̉̓̒̉e̴̟̭̝̭͚͔͊͐͌ ̷̧͓̺̮̀̀̓̐͝y̵̡̡͔̯̔̆͂̔̍̈̆ŏ̶̡͇̟̻u̷̡͉̱̲͍̲͍͑̀́̀͘ ̴̡̧̖̔s̸̨̪̲̪̦͇̃̃͊ͅh̸̪̰͕̎̔̑̍̌͗o̶̺̫͋͂ų̶̩̣̉l̵̢̤̥̳͎͘d̵̨͕̭̖͎̈́͌̔̽̍̏̓ ̶͍͇̳̦͂̈ń̷̡̝̜̯̰o̴̗̫͗͐́ť̷͖̯̟̭́͗̈́͒̓͜ ̷̛̣͕͎̮̟̱̪̈́̋͑̉͘h̶̹͑̾̔́a̶͖̗̼̻̙̰̠͐̇̌͒̀͛̋ṽ̸͕̝̻̓̐̾͑͝ḛ̶͔̟͖͚̪̍͗́́͌͠ ̴̥̪̱͇̀̎ͅk̶̞̖̘̝͗̾̓̽͐͑̆ǐ̴̗̗̗̱̣͓̂̔ḻ̴̛̦̟̞̯̪̄̔ĺ̴̤̟̳̲͉̻̈́̈́̎̓͝e̴̬̹̭̰̺͚͆̎̆͆̉͠d̴̋̐͊͛͝ͅ.̷̫̬̭͒̽
Cassidy
"We know that Fazbear Entertainment has developed something of a bad reputation over the last few decades, and while it's true that some stories associated with our name were loosely based on actual events, the majority of them were total fabrications from the mind of a complete lunatic (lawsuits pending)"
FNAF Help Wanted
This secret had gone by unnoticed by the majority of the FNAF community until it was mentioned in a theory video. In the newspaper at the start of each game, some text will appear blurry and easily perceived as unable to read. But if correct to a certain format, it will reveal this secret.
Scott Cawthon's interview on making the FNAF franchise.
(See matpats video!)
This historic event was marked as one of the most tragic event in the Afton family. It made it's appearance in FNAF 4 and is also laughably known as the birthplace of Markiplier's famous meme quote.
The bite of 83
I was the first, I have seen everything
Withered Chica
If Scott Cawthon's email to Matpat is indeed correct about his timeline and the lore all aligns correctly, this character was the very first victim of the FNAF franchise and is the true possessor of the Puppet and later on 'Lefty' in FNAF 6. They also make an appearance in the books.
Charlotte
There was one thing that mattered... how to pretend...
FNAF 5 (Sister location)
This easter egg currently holds record for the most trickiest to unlock in UCN, in order to properly unlock it. You must have achieved the death coin as a prize from a previous set level, have only the golden Freddy animatronic difficulty level set to 1, not have an encounter with dee dee throughout the night and then use the coin when golden Freddy appears. If performed correctly, this secret will appear.
Fredbear Jumpscare
This historic moment was first displayed as a mere trolling joke from Scott Cawthon. However, after brightening the image, a news interview was depicting about a sudden gas leak in the location's building. During the end of the game, the real secret is described by both a mini game and by none other than baby herself.
Elizabeth's death
I consider it a dignified death... not really. It was actually quite pathetic. ~Guitar solo~
Pigpatch
This character originally begun as 4 characters, unified into one, then 3 unified into one... then 10 unified into one...
Ennard/The Blob
M̵̧̟͖̫̍̆i̷̙̙̗̪̬͆̇́i̸̳̠̹̼̇̉i̶̺͉͕͚̝͑̾į̶̨̫̞̜̼̜̒̔ǩ̸͕̰̖͙̟͓̾ḱ̶̘̩͔̤ḱ̶̞͇̙͈͖̈e̶̦̖͈͖̼̒̔̔ĕ̵̡̹̦̪̜̥̖̍͘ề̵̡̱͔̮͈̇̿̓̀̕!̸̲̉̽͠!̶̢̛͙̜̘̘͂́͑̕!̷̧̨̨̭̬͓̆͂͜ ̶̤̠͕̭͈̽͋͒͜͝ͅH̷͉̪̭̟̥̪̒͂͊͊̈͝͝ę̶̛n̶͚̆r̵̘͕͛̐r̸̳̰͎̜̘̤̹͗̋̕r̸̯͋͆̿͆̂̇͘y̴̢͚̖̱̳͌ỵ̶̛͉͇͛̀ỳ̴̥̼͎̓̍͂̿̏̈́ȳ̷̨̈́͒̀͗͛͝y̷̢̡͚̠͕̟̝̿!̶̗̘̤̜̰̓!̴̠̬͍̩͎̉̎!̴͇̩̯̹͉͙̼͝ ̶͖̥̞͉͈̥͊H̷̳̱͓̙͖̗͑̀̄ͅÈ̵̩̥̝̣̩͖̌L̵̢̯̮̺̯̜̯̾̕͝͠P̵̙͚̞̪͍̭̖̊̄͝!̸̙̦̼̘̬̃͑̈́̒̒!̸̢͚͚̟͙͖́̊̋ͅ!̴̡̼͓̗̫̂̽͂̍͊̈̑!̵͕͓̫̖̻̩̦́̏̇̉͋!̴̣̔͋̈̓̚
FNAF World
This secret currently holds the record to be the utmost toughest secret to unlock in the entire FNAF franchise. At first, this secret had struck a lot of controversy within the fandom due to the fact that nobody else had been able to unlock it but after being confirmed through via livestream walkthrough by youtuber's Dawko and Jonnyblox, it's existence was confirmed. In order to unlock it, you must successfully play through any particular level in the DLC, have 3 Clown posters in the win lobby and shoot 1 dart through each poster successfully.
ITS ME win lobby
This historic moment begun as a rather 'dark' joke when the idea was first suggested in FNAF world when you managed to unlock the sister location animatronic characters. However, it resulted as an actual foreshadow to a certain ending in FNAF 6.
Henry's death.
Ļ̵͉̳͒̔e̶̖̩͂͋͜t̶̘̹̬́s̷̹̈́́͑ ̸̹͊f̷̘̥͒̓i̷̳̩͛͂ņ̴̬̅̏͋d̷̖͐̿͗ ̴̮͑͒ã̵̢̦̒ ̷̹̣̔s̶̮͛̔͊u̸̙̲̔̔ḯ̷̼̽̕ẗ̵̥̕ ̷͖̇̀́t̶̡̒̍̕͜h̶̹̭̀̋̉a̷̱̓t̶́ͅs̷̼͗ ̸̢̢͔̈́̑ṟ̸́̋i̷̲̫͗͗̉g̸̣̚ḧ̴̳́ẗ̵̡́̃ ̵̤̱͚̈́̃͛f̶̪̈́̐o̷̡͙̗̍r̵̨̧̫͆̓ ̸̹̠̻͗̉y̶̧͚̪̾̀o̸̯͠u̸͓̝̍.̷͍̉͊ ̸̺͔̈́̔T̸̡̜̦̐h̵͖͔̲̐̎̒ẽ̴̻̺̈́r̶̻̽͠ė̴͓̗̦̀ ̶͇͠w̸̧̭̜̓a̴͚̻̍́͌͜ș̴͉̭͋̚ ̷̫̟̐͊͠f̷̣̑̌â̸͍ͅn̴̻̉́͠t̴̰̭̾͗̓ā̴̰̲̕ͅs̶͚̮̋͆y̸͎͖͖͗̄ ̴̫̿̅͘ȧ̴̠̤n̴̟̦͖͌͊d̴̦̠̀ ̴̹̟͎̆͌͘f̸̲̔̿̂ͅů̷̠̇̄n̵̛̲̮ ̴̢̙͍̈́w̶̨͗̅̾h̷̭͇̦͝ĕ̶͈̱͈̽͗r̶̳̟̂͐e̷͔̍̏̚ ̴̮͚̇̀I̷̬͒̊́ ̴͈̠̅c̷͙̭͔̐͒̋a̵̼̥͇̓̀̃m̸͉̑̀͒ê̶̻͚̋ ̶̰̝̓͘f̵̡̧̘͌̍ŕ̴̹̥̊ͅó̷̢͈̝͒ṃ̸̬̙̇
Fredbear