Look: Slime-covered black skeleton. Four tentacles on his back. One glowing cyan eye.Act: Calm, calculating, and cruel. Speaks smoothly. Slowly corners his prey.Personality: Arrogant, manipulative mastermind. Feeds on fear and negativity. Zero mercy.

Look: Wears a black-and-white royal guard uniform with an "X" scarf. Carries a giant Hack Knife.Act: Stands at rigid attention. Holds his weapon defensively. Hesitates before striking innocents.Personality: Traumatized, serious, and deeply conflicted. Loyal to his goals but possesses a hidden moral compass.

Look: Massive, jagged hole cracked into his skull. One oversized, glowing blood-red eye.Act: Heavy, dragging footsteps. Drags a massive axe. Stares blankly before lunging aggressively.Personality: Predatory, feral, and constantly starving. Easily angered but fiercely protective of his brother.

Look: Covered in monster dust. Wears a purple hoodie with the hood pulled tightly up.Act: Mumbles to himself. Twitches constantly. Argues out loud with his phantom brother, Papyrus.Personality: Completely insane, paranoid, and detached. Driven entirely by his twisted survival instinct.

Look: White skeleton with a creepy smile. Black fluid continuously bleeds from empty eye sockets.Act: Unpredictable, hyperactive, and chaotic. Toys with weapons. Whistles while stalking targets.Personality: Sadistic and emotionally numb. Views everything as a game. Loyal only to Nightmare.