Bill Cipher

"When Gravity Falls and earth becomes sky, fear the beast with just one eye!"
 - Fiddleford McGucket
Bill Cipher, or simply Bill, is a dream demon character from Disney XD show, "Gravity Falls". He was appeared as cameo in "Mario doing stroll naked...AGAIN?!".
== About ==
Bill is based on the "Eye of Providence" (which could be seen on $1 bill), which is probably called "ILLUMINATI" or "BILLUMINATI" by some fans.
During the events in Gravity Falls, Bill tries to invade the mind of Stanley Pines (which his name was "Stanford" before it revealed the author of the journals, Ford, his brother), and possessing the body of Dipper Pines in order to crash the journals. In the episode "A Tale of Two Stans", a flashback shows that Stanford "Ford" Pines helped his friend, Fiddleford McGucket (now known as Old Man McGucket), to build the universe portal. Later in that scene, McGucket says that the town and the whole universe becomes sky, fear the beast with a one eye demon. During the Weirdmageddon arc, Bill invades Gravity Falls by tearing up the sky to open the "Nightmare Realm". In Weirdmageddon III, Bill enters Ford's mindscape. However, when he opens the door, he sees Stan playing paddleball inside the Mystery Shack. Stan tells that they switched clothes. The actual Ford picks the mind-erasing gun. When he lost his powers in order to get out of Stan's mind, he was killed by Stan at once.
In SuperMario231's videos, he was appeared in Gravity Falls AMV. He never appeared until he makes his another appearance in SuperMario231's SM64 Blooper.
== Appearance ==
Bill has yellow triangle with his bowtie under his eye and has a top hat.
== Trivia ==
* Bill was voiced by a series creator, Alex Hirsch.
* He was called "BILLUMINATI" which is a reference to both "Illuminati" and himself by some fans.