Void Fizz is the Purple Guy
Void Fizz is the same character as Purple Guy from Five Nights at Freddy's.
Now I know this may seem like a stretch, but let me explain a bunch of things we know common between the two.
-The purple guy is purple, therefore he cannot be a human since human beings are not purple. He's also not bulky, so he couldn't be Mundo or Jax. -Purple Guy has feet that closely resemble Vizz's. -Both Void Fizz and Purple Guy have long necks which shouldn't be able to support their heads. -Both Purple Guy and Vizz have almost cartoonishly large mouths. -Both lack eyebrows unless needed to convey specific emotions at a given time.
-The Purple Guy appears to be holding a purple trident. Some might argue this is a phone, but phones are rarely ever purple. Vizz's trident is purple though, and we know this as a** fact**.
-Both Purple Guy and Vizz are completely naked aside from Phone guy having a badge. Since Vizz doesn't have any external organs, he doesn't need clothing, and therefore would only need to wear the badge when performing his duties as a security guard.
As made apparent by Saturday Void Show, Vizz is a guy whose usually in an ecstatic state but is a borderline psychopath who proudly states early in the series, "I stab people," and as we now know, the Purple Guy had a trident as his weapon of choice, just like Vizz.
-Purple Guy likes Foxy, and we know from popular League fanart and fanfiction that Fizz likes Ahri.
-Vizz is short, has a young sounding voice, and is an anthropomorphic animal guy. These things combined would make it easy for him to get the trust of children more so than a human security guard.
-Purple Guy's movements are very fish-like. (Trust me, I know.)
-Both come from a universe other than ours where paranormal things such as spirits and ghosts are a reality.
-The check in FNAF2 is dated November 13, 1987. Fizz was released November 15. -Void Fizz was released on April 7, which confirms both FNAF 4, and that night 7 is real.
If this wasn't enough evidence, the games are actually riddled with anagrams.
FIVENIGHTSATFREDDYS anagramizes into words like: FISH AND FRIES, SAT (Referring to Saturday Void Show), SEVEN (The day of April Vizz was released on), FIRST FEEDING, And this one is really freaky. At the Drive--In, a band which is known mostly for the song One-Armed Scissor. The lyrics bear an eerie resemblance to FNAF3 and Void Fizz himself ("Check the oxygen tanks" (Ventilation) "Unknown origins. Is this the comfort of being afraid?") SPRINGTRAP: GNAR, RING RAT (Original Twitch?), GP (Gangplank). PHANTOM BONNIE: PANTHEON. THE PURPLE GUY: EYE UP. The purple guy (Vizz) keeps his third eye concealed by leaving it closed. This anagram hints to his hidden third eye above and between the other two. FAZBEARSFRIGHT: ART FISHER, BEATFISH, GREAT FISH, SEABRIGHT THE TIDAL TRICKSTER: SCARLET TIDE. Does this one even need explanation?
I think all of this is pretty conclusive, but tell me what you guys think!