The boss of the Villain Sans Squad. Bill's friend. Shattered Dream's older brother and usually accompanies him. Gender: Male. Personality: Cold-headed and ruthless. Appearance: His entire body, including clothes, is made of black liquid. Cyan eye-glow. Abilities: Regeneration, four tentacles.

Member of the Villain Sans Squad. Team: Murder Time Trio. Accompanies Horror and Killer; acts as the leader. Gender: Male. Personality: Quiet and calm. Appearance: Blue hoodie, glowing left eye mixed with red and cyan, glowing red right eye, white t-shirt, black shorts. Abilities: Bone summoning, Gaster Blasters, trident, telekinesis, teleportation.

Member of the Villain Sans Squad. Team: Murder Time Trio. Accompanies Murder and Horror. Gender: Male. Personality: Ruthless. Appearance: Black liquid constantly flowing from eyes, navy coat with fur trim, black t-shirt, white shorts, circular red light on the stomach area. Abilities: Knife summoning, bone summoning, Gaster Blasters.

Member of the Villain Sans Squad. Team: Murder Time Trio. Accompanies Murder and Killer. Gender: Male. Personality: Grumpy and abrasive. Appearance: Navy hoodie with fur trim, cracked left skull, red left eye, white t-shirt, black shorts. Abilities: Axe summoning, bone summoning.

Member(?) of the Villain Sans Squad. Friend of Nightmare. Gender: Male. Personality: Good at provoking others; often the one starting trouble. Appearance: Yellow suit, black coat, yellow eyes, black hat.

The commanding boss of the Villain Sans Squad. Nightmare's younger brother. Accompanies Nightmare. Gender: Male. Personality: Full of resentment, calm yet cold. Appearance: Entire body including clothes made of black liquid, golden headband, yellow eye-glow. Abilities: Bow, four tentacles.

Member of the Villain Sans Squad. Carries out massacres alone, though sometimes accompanies Insanity. Gender: Male. Personality: Unscrupulous and lacks a conscience. Appearance: Straight scar over the right eye, purple eyes, purple hoodie, white t-shirt. Abilities: Bone summoning, Gaster Blasters, gravity manipulation.

Member of the Villain Sans Squad. Team: Murder Time Trio (Support). Assists Murder, Horror, and Killer; sometimes accompanies Scoundrel. Gender: Male. Personality: Madman, ruthless, and cruel. Appearance: Navy hoodie, fractured skull, crazed eyes, blood flowing from mouth and skull crack, white t-shirt, carries his dead brother's head in his left hand, black shorts. Abilities: Bone summoning, Gaster Blasters.

Member of the Villain Sans Squad. Team: Error Time Duo. Accompanies Error404. Gender: Male. Personality: Impatient and easily annoyed. Appearance: Black skin, left pupil containing yellow and blue, blue scarf, black coat stitched with blue strings, red t-shirt. Abilities: Spatial teleportation, blue strings, bone summoning, Gaster Blasters.

Member of the Villain Sans Squad. Team: Error Time Duo. Accompanies Error. Gender: Male. Personality: Cold and detached. Appearance: Blue eyes, white hoodie with blue stripes and blue fur trim, black t-shirt, black shorts. Abilities: Dimensional travel, Gaster Blasters, black strings, Laser Beam (a powerful ability that fires energy gathered at the fingertips).