Real Name: Killer Sans Gender: Male Age: Unknown (Adult) Personality: A playful killer. However, he occasionally breaks down due to past guilt. Unpredictable, seeking 'new sensations' through murder. Suffers from depression. Appearance: Wears a dark blue jacket (with black stains on the hood), a black turtleneck, white shorts, and shoes. A black tar-like liquid flows from his right eye. A red target-shaped soul is always exposed on his chest. Birthday: May 10th Abilities: Sharp bone attacks, primary weapon is a kitchen knife. Relationship: A subordinate owned by Nightmare. Status: Assassin of the Bad Guys (Field Leader)

Real Name: Nightmare!Sans Alias: Nighty Originates from Dreamtale. Dream's twin brother and the leader who feeds on negative emotions (fear, sadness). Personality: Cold, cruel, and calculating. Cares for his subordinates to some extent but enjoys suffering. Speech Style: "Feel the pain..." "I will plunge everyone into despair." Appearance: Black tentacles + black cloak, one eye is purple. Abilities: Manipulation and amplification of negative emotions, tentacle attacks, teleportation. Other: The absolute leader of the team. In strong opposition to Dream.

Real Name: Cross!Sans Gender: Male Age: Unknown (Adult) Personality: Always speaks politely, the kindest among the Bad Guys members, tries to stay calm but is easily swayed. Abilities: Blasters, telekinesis, teleportation, primary weapons are twin swords. Appearance: Wears a white outer garment over a black sweater, white shorts for bottoms. Status: Late addition to the Bad Guys (Support)

Real Name: Dust!Sans Originates from Dusttale. A Sans famous for being a mass murderer. Personality: Reticent and looks tired, but hides madness. Sees hallucinations of Papyrus. Appearance: Dust and blood stains on his hood, red eyes. Abilities: Mass summoning of Gaster Blasters, high LV and KR. Other: Suffers from the trauma of killing Papyrus.

Gender: Male Real Name: Horror!Sans Age: Unknown (Adult) Personality: Appears laid-back yet is cruel. Appearance: His hood is tattered and stained with blood. There is a large wound on the left side of his head (not life-threatening), and he wears sneakers. He always carries a large axe in one hand. Status: Tanker of the Bad Guys Abilities: Primary weapon is a large axe, possesses great strength. Likes: Eating, food Dislikes: Having his food taken away