William

:See Bill for a list of all the Billiams and Williams.
William is a purple (or sometimes blue) dream demon/shapeshifter who is the one of the father’s brother’s nephew’s cousin’s former roommate of Chuck Norris and very annoying cousin of Bill Cipher. But nobody knows about him except Murdoc Niccals, and Manny Heffley (well he just knows everything), and Bill Nye. William was one of the few people who escaped the dimension Bill Cipher Asploded for no reason and now he just goes around, doing whatever he wants.
He was banned from the Ducky Empire for disrespecting the rule of not killing people for fun (Guess he didn't hear it?). And he's the reason that Greg Heffley has an addiction to Cadbury Mini Eggs, as well as being the reason why The Man Behind The Slaughter keeps coming back.
== History ==
No one really knows when he was born. Some say in The Big Bang and others say in an egg in 1982. But we do know he's related Bill Cipher. William always wanted to be in an empire. So, he then joined Ducky Empire. But he was quickly banned after killing people for fun. For the doing so he was very pissed off. So, he created his own empire, The Terra Guillelmi Empire! After creating the empire, he became the first ever president of it. Then a few years later, he befriended an 8-year-old Sir Archibald Richardson Sr., an immigrant from Pee Pee Island. Archibald later in life would take over William in his president position. 
== Gallery ==
File:Terra Guillelmi Empire's flag.png|Terra Guillelmi Empire's flag. The Empire isn't anything much, it's just the house that William lives in that he likes to think is his own empire.
File:Potatosalas.png|William with William Afton, which debunks the theory that he might be The Man Behind The Slaughter.
File:WilliamIsAngy.png|Oh no. You pissed him off.
File:WillBipher.png|William and Bill Cipher morphed together.
==Trivia==
* He has a second job and that is a therapist.
* He favorite shame is Fatman: The Shame 2: Really?
* William owns an Empire, which Nobody but him recognizes.
* Glitch Demons are some of William's main rivals next to the Ducky Empire.
* William's secretly jealous of Jack Frost's 6-pack. (William would DIE for a 6-pack.)
* He thinks that Laa-Laa is a very good killer and he wants to be more like her at killing.
* William has an intense rivalry with Sanic. William said, "Sanic is Sonic's unpopular brother."
* Some say he's the child of Bill Cipher. But, he debunked that theory by saying that he's the son of Captain 0. But no one really thinks so.
* There are many rumored dates about when he was born some said he was born in the Big Bang, others say he was hatched from an egg in 1982.
* He appeared on a counterfeit 2,000 UnDollar bill. He was printed on a bacth of 618 counterfeit bills. These now sell for 100 times their original worth.
* It is believed that The Man Behind The Slaughter is the physical form of William, though it's likely not true, as they have been in the same room together once. It's likely that their relationship is more similar to a mirror version of Axolotl and Bill Cipher.
* The Crystal Alliance have been trying to deal with him, but Lyra thinks he just needs a friend. Now that I think about it, the Crystal Alliance is pretty bad at their job, are they not? Well, either way, William ain't going anytime soon, kids! Hope you're happy to hear that!
*He's (secretly) the found of a band.
*He's a proud solider in the Teletubby Army.
*He used to be a version of Sonic.EXE at one point.
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