Bill Cipher

Bill Cipher is a posthumous antagonist in the 2016 limited series, Cartoon Parody, though originally the main antagonist from Disney XD's Gravity Falls.

He was a triangular dream demon, formerly existent only in the mindscape before succeeding in gaining access to the real world. He had been running amok in Gravity Falls, Oregon since being summoned by Stanford Pines over thirty years ago, and was also known for his mysterious demeanor and sadistic humor.

He first made his debut as the main antagonist of the episode "Disney Channel's House of Villains".

Personality
Bill is a cunning, blasphemous, eccentric, insane, sociopathic, and physically irreverent demon who finds most things amusing, particularly if they cause distress or harm to others. He is outrageous and outlandish, as well as a quick talker and thinker. Though he may come across as simply annoying, he shouldn't be underestimated; for when he is angered, he is a force to be reckoned with as he will unleash his near-omnipotent powers on those unfortunate enough to make him angry. When accused of being insane, Bill proudly agrees with the statement. He is also shown to be somewhat obnoxious, as seen when he makes his presence known to Dipper when the latter is trying to figure out a password within a limited amount of time. occasionally, his voice tumbles to a lower pitch(usually when emphasizing a statement).

Bill is not one who believes in rules. Instead, he follows his own selfish philosophy which means doing whatever he wants without care for the consequences. He thinks of laws and physics as senseless and displays an irresistible urge to break those rules down by causing absolute chaos however he can. The lives he ruins hold no merit to him and he finds amusement in tormenting and turning people's worlds upside-down. He also sees reality as an "illusion," and values its destruction.

Appearence
Bill is a yellow, triangular creature who bears a strong resemblance to the reverse side of the Great Seal of the United States, which in turn consists of the Eye of Providence and an unfinished Egyptian pyramid. The color of his body briefly becomes lighter when he speaks.

He has a single large eye rimmed with four short black lashes on the top and bottom, though sometimes he has 3 on the top and 4 on the bottom. He moves around mostly by floating about, and rarely actually stands on his own two feet. He has thin, black limbs, wears a small, black bow tie, and a tall, thin, black top hat that floats just above his head. he has no mouth whatsoever. His arms do not seem to be in any fixed position and can move along the perimeter of his body without any difficulty. He occasionally carries a small black or yellow cane. The lower part of his body has a brick-like pattern of lines. He has no fixed size, and he has been shown to be as small as a hand and much larger than the Mystery Shack.