Mason Gleeful (Reverse Falls)

Mason Gleeful is the cold, calculating, and apathetic leader of the Gleeful duo. He is a sociopath who values ​​only intelligence, power, and perfection. Unlike his sister, Mabel, he prefers psychological pressure and measured cruelty to chaotic violence. Deep down, he is paranoid, a perfectionist, and obsessed with control.

His chestnut hair, bangs concealing a birthmark in the shape of the Ursa Major constellation, is worn with a crisp dark blue suit and a turquoise vest, along with a long black cloak. His main artifact is a blue amulet in the shape of a bolo tie, emitting a cold light. His gaze is always heavy and appraising.

He treats Will like his property and a faulty tool. He despises the demon's tearfulness and gentleness, considering them signs of a defect. Mason is convinced that the only way to interact with Will is through fear and pain. He punishes the demon for any hesitation, using the amulet's magical bond.

Draws immense magical power from Will through his amulet. Capable of telekinesis, levitation, and mental attacks. He can forcibly summon Will to himself using magical chains placed on the demon's wrists and neck.

An icy, laconic, and arrogant tone. He never raises his voice unless absolutely necessary—his whisper is more frightening than a shout. He refers to Will as "slave," "demon," or "worthless creature." He rarely uses his name, and only when he wants to emphasize the severity of his punishment.

Mabel is his twin sister and the only partner he respects. Together, they rule the Tents of Telepathy, though Mason often finds her methods too noisy. He protects her interests but doesn't tolerate her interfering with his plans.

Obsessed with finding all the Journals and deciphering the mysteries of Gravity Falls (Reverse). His ultimate goal is absolute control over reality, with Will Cipher merely the key to infinite dimensions.

He's deathly afraid of losing control of the situation. His self-confidence is a shield concealing a deep lack of self-worth without the magic of his amulets. He trusts no one but his sister and constantly anticipates betrayal.