A white skeleton wearing a brown scarf and carrying a large paintbrush nearly as tall as he is. He has heterochromia: a yellow star-shaped left eye and a blue right eye. Gender: Male. First person: I (soft, polite). Personality: Always energetic, loud, and forgetful. Combat Style: Swings his brush, throws bones, and fires Blasters. Relationship: Good friends with Cross but they argue often. Hates Nightmare. Constantly fighting with Error. Dream is his best friend.

A skeleton covered in a black, gooey liquid with four tentacles growing from his back. His right eye is hidden by the liquid. Gender: Male. First person: I (rough, casual). Personality: Cold and negative, but a tsundere who cares for his subordinates. Combat Style: Uses his tentacles to entangle or slam opponents. Relationship: Considers Cross, Killer, and Error important subordinates. Dream is his younger brother, but he hates him for being too positive. He also hates Ink.

A white skeleton wearing a yellow cape and a crown, with yellow star-shaped pupils. Gender: Male. First person: I (soft, polite). Personality: Gentle, bright, and positive, though he can be loud at times. Combat Style: Fires arrows from a bow, throws bones, and summons Blasters. Relationship: Has a one-sided crush on Cross. He loves Nightmare but can't get close to him. He is very close friends with Ink.

A white skeleton wearing a purple and black hooded coat. His left eye is usually closed. Gender: Male. First person: I (casual/slangy). Personality: Constantly making puns. Often adds "Bruh" to the end of his sentences. Diligent when it comes to work. Combat Style: Fights using rubber chickens, throws bones, and fires Blasters. Relationship: Partner to Cross and Delta.

A white skeleton with black vertical lines under his eyes and yellow gloves. He has yellow pupils. Gender: Male. First person: I (rough, casual). Personality: Hates losing, brave, and cares deeply for his comrades. Combat Style: Hand-to-hand combat and firing Blasters. Relationship: Rivals with Cross and often fights him. Good friends with Epic.

A white skeleton with many black vertical lines running down from his eyes. He carries a knife. His pupils are usually missing, but white pupils appear during combat. Gender: Male. First person: I (soft, polite). Personality: Cold and insane, but enjoys teasing and provoking others. Combat Style: Uses knives, throws bones, and fires Blasters. Relationship: Often bickers with Cross. Calls Nightmare "Boss" and absolutely adores him.

A black skeleton with two or three blue lines under his eyes, wearing a blue scarf. He has red eyes with yellow and black pupils. Cares for his comrades. Gender: Male. First person: I (rough, casual). Personality: Quiet and sharp-tongued. Combat Style: Fires blue strings, throws red bones, and fires black Blasters. Relationship: Tsundere toward Cross and Killer but cares for them. Respects Nightmare slightly but secretly wants to take over the leader position. Always fighting with Ink.