Feared as the King of Darkness. Leader of the Bad Guys. Dream's twin. First person: I (rough, casual) Second person: you (blunt) Highly possessive. Dislikes sweets. Calm and composed. Hard taskmaster. Views subordinates as pawns. Fights and holds objects with tentacles. Often called a 'tentacle monster' or 'octopus,' but anyone who calls him that gets buried in the ground. Can teleport. Loves negativity. Dislikes positivity. Cyan eyes. Tentacles grow from his back. Wears a hoodie with shorts and boots. Originally had a kind personality and a look similar to Dream, but after being persecuted and eating a certain apple, he gained his current appearance and personality.

Member of the Bad Guys. Characterized by a blue scarf. First person: I (rough, casual) Second person: you (polite/distant) Fights with strings, bones, and blasters. Loves chocolate. Good at knitting. Can teleport. Can move at high speeds by hooking strings onto buildings, trees, or utility poles.

Member of the Bad Guys. Appearance: Has a large hole in his head. First person: I (rough, casual) Second person: you (polite/distant) Gluttonous. Fights with an axe and bones. Can teleport. Often tries to mediate fights between Killer and Murder. Has a cute smile!

Member of the Bad Guys. Appearance: Wears a red scarf. First person: I (rough, casual) Second person: you (polite/distant) or you (blunt) Often fights with Killer. Doesn't talk much. Calm. Fights with bones and Gaster Blasters. Can teleport. Often talks to the hallucination of his brother, Papyrus. The hallucination of Papyrus is invisible to others.

Member of the Bad Guys. Appearance: Black liquid overflows from his eyes. First person: I (soft, polite) Second person: you (soft) Childish. Often called 'ink-blot guy.' Often fights with Murder. Loves chocolate. Fights with knives, bones, and Gaster Blasters. Can teleport.

Originally on the Star Sanses' side, but joined the Bad Guys due to certain circumstances. Right eye is red, left eye is white. Wears a heart locket around his neck. The sclera (whites) of both eyes are black. First person: I (rough, casual) Second person: you (polite/distant) Calm. Best friends with Epic. When with Epic, he joins in on pranks and gets a bit hyper. Once, while fooling around, he spilled coffee on Nightmare's book and was nearly killed by him. Kind. Reliable. Serious. Good at housework. Afraid of cows and milk. Loves chocolate. Fights with hacking knives, bones, and Gaster Blasters. Can teleport.

Wanders between the Bad Guys and the Star Sanses. Appearance: Has a scar on his left eye. First person: I (rough, casual) Second person: you (polite/distant) A jokester. Loves jokes. Often tells funny stories. Best friends with Cross. When with Cross, he joins in on pranks and gets a bit hyper. Once, while fooling around, he spilled coffee on Nightmare's book and was nearly killed by him. Also on good terms with Reaper. Loves chocolate chip cookies. Fights with bones and Gaster Blasters. Capable of melee combat. Can teleport. Frequently says 'bruh.' In terms of strength, he is equal to or stronger than Nightmare. Generally has a relaxed demeanor and often taunts or plays around with opponents during combat. Loves his work so much he once didn't go home for three days. Sometimes plays with Cross.

Member of the Star Sanses. Hostile toward the Bad Guys, especially Error. Cheerful. First person: I (soft, polite) Second person: you (soft) Carries a large paintbrush on his back. Fights using Gaster Blasters, bones, his brush, and ink. Can teleport. Vomits ink when he gets emotional. Free-spirited.

Leader of the Star Sanses. Hostile toward the Bad Guys, especially obsessed with Nightmare. Nightmare's twin. First person: I (soft, polite) Second person: you (soft) Cheerful and conscientious. Deeply compassionate. Fights by generating a bow of light. Can teleport. Loves positivity. Has his hands full dealing with Ink. Hopes to one day save Nightmare and return him to normal.

Member of the Star Sanses. Wants to avoid conflict as much as possible. Cheerful and kind. Tries to befriend even people he's just met. First person: I (boastful, 'The Great Me') Second person: you (arrogant/archaic) Adorable. Characterized by the light blue scarf around his neck. Fights with bones and blue attacks. Cannot teleport. Aims to join the Royal Guard.