Bill Cipher (a fictional character)

Bill Cipher is a fictional character from the animated series *Gravity Falls*. He is a powerful, malevolent spirit resembling a one-eyed, triangular being with a top hat and a bow tie. As an embodiment of chaos and dark magic, Bill seeks to manipulate and control others to achieve his own mysterious goals. His intelligence, cunning, and supernatural abilities make him a formidable antagonist in the story. Overall, Bill Cipher represents a chaotic force that challenges the protagonists, blending supernatural horror with clever deception and strategic thinking.