FNaS 1:

@sillycarl - Clone Sonic

@GemOnGJ - Clone Mario

@goofyahhblueberry - Clone Yoshi

@tehnoobyguy - Clone Tails

@chec0e - '15 Golden Sonic

FNaS 2:

@sillycarl - Toy Sonic

@GemOnGJ - Toy Mario

@goofyahhblueberry - Toy Yoshi

@PlushAleenathefox - Taingle

@lehtind - Ballon Toad

@TheHasanGamer - Luiginette

@sillycarl - Withered Sonic

@GemOnGJ - Withered Mario

@goofyahhblueberry - Withered Yoshi

@tehnoobyguy - Withered Tails

@chec0e - '17 Golden Sonic

@Super_Massacre_Guy_69 - Shadow Sonic

FNaS 3:

@sillycarl - Salvage Sonic

@sillycarl - Withered Toy Sonic

@GemOnGJ - Withered Toy Mario

@goofyahhblueberry - Withered Toy Yoshi

@GemOnGJ - Phantom Mario

@goofyahhblueberry - Phantom Yoshi

@tehnoobyguy - Phantom Tails

@lehtind - Phantom Balloon Toad

@PlushAleenathefox - Phantom Taingle

@TheHasanGamer - Phantom Luiginette

@chec0e - '27 Golden Sonic

FNaS 4:

@sillycarl - Nightmare Sonic

@GemOnGJ - Nightmare Mario

@goofyahhblueberry - Nightmare Yoshi

@tehnoobyguy - Nightmare Tails

@JalabeanSH - The Toymare

@chec0e - Nightmare Golden Sonic

FNaS 5:

@chec0e - Origin Sonic

@chec0e - '15 Golden Sonic

@chec0e - '17 Golden Sonic

@chec0e - '27 Golden Sonic

@chec0e - Nightmare Golden Sonic

@Super_Massacre_Guy_69 - Shadow Sonic

Nightguards:

@negativeego - Knuckles (FNaS 1)

@Kseniya_chan - Amy Rose (FNaS 2)

@sillycarl - Sonic (FNaS 3)

@TheHasanGamer - Luigi (FNaS 4)

@Victorbambi - Eggman (FNaS 5)

Phone Guys:

@TheHasanGamer - Luigi (FNaS 1)

@negativeego - Knuckles (FNaS 2)

@DatBloxyBirbGames - Silver (FNaS 3)

@sillycarl - Nightmare Sonic (FNaS 4)

@Applestar233 - Tails (FNaS 5)

Other characters (some of them are scrapped and easter egg):

@GoneMissing - Lefty Sonic

@Kseniya_chan - Phantom Amy

@sillycarl - Phantom Salvage Sonic

@PlushAleenathefox - Toy Tails

@Joshua-1223-5 & @PumpkBro - Plushnic & Plushtails

@Manic0626 - Nightmaric

@togo91 - Clone Mighty

@MrMalos - Luigikid