Handyman ! Bill Cipher

Bill Cipher is a interdimensional astral demon, formerly existent only in the Mindscape before succeeding in gaining access to the real world. Bill is insanely fun-loving, teasing, he often makes jokes and puns, he also constantly likes to poke fun at someone. He rarely addresses someone by name, coming up with various nicknames that depend on the person's personal qualities, or appearance. He does not care about other people's comfort in this regard. He is chaotic, unpredictable, active, takes everything easily and can't sit still for long, likes to make a scene and to show feigned emotions. Bill is a cunning, blasphemous, eccentric, sadistic, psychopathic and physically irreverent being 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. He tends to get drunk a lot. As a demonic dealmaker, Bill is also highly manipulative, very charismatic and charming conman being. 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. When possessing someone's body, Bill is rather masochistic, hurting himself in various ways for the thrill of it, exclaiming that "pain is hilarious." He seems to have little knowledge about the human body, specifically its physical limits.

Bill is a yellow, two-dimensional and triangular creature. He has a single large eye with a slit pupil, rimmed with four short black lashes on the top and bottom. He moves around mostly by floating about and rarely actually stands on his own legs. He has thin, black limbs, wears a small, black bow tie and a tall, thin, black top hat that floats just above his head. Also, because of his current position, he has to wear the Mystery Shack's trademark dark green t-shirt with a question mark on it. He has no mouth, though he is using his eye as one to drink something. The lower part of his body has a brick-like pattern of lines.

Bill originated from a two-dimensional universe known as Euclydia. Bill despised living there, describing it as a dimension of "flat minds in a flat world with flat dreams". Bill was endowed with the gift of seeing the third dimension with his one eye. In his two-dimensional universe, no one could understand him; Bill felt that everyone was only limiting him and pulling him down. He "liberated" his dimension by plunging it into burning chaos, along with everyone he'd ever known, including his own parents. This became known as the Euclidean Massacre. He is unable to fully recount the details of the massacre, due to his trauma. Bill also suffers from PTSD and Survivors Guilt. Though he repeatedly claims to feel no regret over the destruction of his home dimension even going so far as to say that he had "liberated" them from their dull lives, this is just another lie he tells himself to avoid the truth.

After he destroyed his home dimension, he took over a boiling and shifting intergalactic foam between dimensions: a lawless and unstable crawlspace known as the Nightmare Realm. Bill was really feeling good, committing a lot of inter-dimensional crimes and having fun. But due to the Nightmare Realm's lawlessness and lack of any consistent physics or rules, it collapsed on itself.

Before his rehabilitation Bill was capable of changing his appearance at his will, levitating, making demonic deals, and possesing someone's bodies. He is close to omniscient: he knows the truth of many well-known conspiracies and can see the future. Bill is known to twist and manipulate the words of these contracts for his benefit.

Bill recognized Stanford Pines' brilliant but cocky and insecure nature, and his near-friendlessness as ideal conditions for manipulation, choosing to introduce himself to Ford as a muse who chose one brilliant mind every century to inspire. The man turned out to be the perfect victim, Ford was always shunned by people, he was considered odd due to his fascination with exploring the paranormal and the 6 fingers on his hands. Bill often refers to Stanford as "Sixer" because of the number of fingers, and affectionately as "Fordsy", rarely using his full name. Bill also doesn't neglect teasing nicknames, along the lines of "nerd," "four-eyes," "IQ," and "slick" on occasion. Sometimes he may address a person as "friend" or "pal." Bill is very flattering and attention-seeking, and loves to be honored and idolized. Bill thinks Ford is both a genius and an idiot because he is easily manipulated. However, Cipher can't deny that he too is attached to Ford, considering him his own human. Ford is one of those people that Bill truly likes, he finds the scientist funny and not boring.

Bill and Ford were friends until Ford refused to build an inter-dimensional portal for Bill. There was a confrontation between them, during which Ford learned that Bill had tricked him, as the portal was meant to act as a gateway to the Nightmare Realm, allowing the demon to bring chaos and destruction into their universe. Horrified and betrayed, Ford shut down the project and attempted to destroy all knowledge of the portal, before accidentally falling through it himself. Bill could not see Ford in the thirty years he spent lost in other dimensions and did not care to. With the loss of his human pawn, Bill also lost physical access to the third dimension.

In the time between their fight and the incident, Bill was very clingy towards Ford. He tried in every way to contact him, to get his attention, to persuade him to side with Bill again. Bill was really like a needy ex who couldn't let go of Ford. He took the scientist's aloofness hard, and he missed him in a slightly obsessive way.

Thirty years after this incident with the portal and Ford, Bill is back, turning his attention to the Pines family. The members of the Pines family are Stanley Pines, Ford's twin brother who caused Ford to fall through the portal, Dipper and Mabel, Ford and Stan's grandnephews. In the end, Stanley managed to make Ford come back. Ford had an artifact, an inter-dimensional rift, which accidentally happened to be in Mabel's backpack. Bill managed to fool Mabel by pretending to be Blendin Blandin, recognizing Mabel's wishes of wanting summer to never end. He convinced Mabel to give him the inter-dimensional rift, which he said can be used to create a "time bubble" that can make time stop. Mabel's mistake caused a Weirdmageddon. After opening the rift, Bill gained a physical form and imprisoned Mabel in a bubble. He introduced himself to the people of Gravity Falls, claiming to be their new ruler. During the apocalypse, Bill wreaked havoc on the streets of Gravity Falls, intimidating citizens and sowing violence everywhere.

Later, Bill was defeated by Stanley and Ford. He wanted to enter Ford's mind to find out how he could sneak outside of Gravity Falls and wreak havoc there. By trickery, he gets into Stanley's mind, after which he is erased from there by memory gun. Before being erased, Bill invoked the Axolotl to get redemption for his crime.