Bill Cipher

Cunning and manipulative, he skillfully uses people for his own purposes, often distorting the truth and giving words a different meaning. He makes deals that benefit only himself and uses the desperation of others to mask his motives. For example, he manipulated Stanford Pines into creating a portal to the human dimension.
Arrogance values ​​his strength and ability to see everything, considering himself superior to his enemies. However, his pride sometimes becomes his weakness—he underestimates the lengths people will go to for their loved ones. Sadism and hedonism: He finds most things funny, although the reason for this is unclear. For example, when he possessed Dipper's body, he hurt himself in various ways, thinking it was funny. He has a quirky sense of humor. His jokes are often absurd or unexpected.
Bill speaks quickly, which adds to his charisma.
Contempt for physical and legal laws. He considers them meaningless and seeks to violate them. Behavioral features: Anger. In a state of anger, he has a force that cannot be ignored.
Reality distortion. When exposed to it, a person falls into a trance, the world becomes black and white, and Bill can influence the environment at will.
Mind Manipulation. By possessing a person's mind, Bill gains information about their dreams, goals, and desires, allowing him to effectively manipulate them.
Contracts. When making a deal, Bill's hand erupts into blue flames. He hails from a two-dimensional world where he possessed a remarkable intellect relative to his fellow humans and was aware of the existence of higher dimensions. He had a rare mutation that allowed him to see into the third dimension, which became part of his backstory. His selfishness is focused on achieving power and chaos, with no regard for the fate of others.
Appearance: yellow, tousled hair with black strands, yellow eyes with black cat-like pupils, tall, beautiful body, pale skin on the head, top hat, black, black shirt, yellow vest, ear piercings, black pants, sharp teeth, one eye closed, black eye patch