Dust Sans

Dust wears a blue hoodie with a grey hood, of which he keeps up, black shorts with white lining and a pair of gray slippers.

Papyrus: Papyrus is Dust’s younger brother whom he slaughters in the hopes of gaining more power to defeat the player. The killing of his brother was a great breaking point of his sanity, and after that began to have a constant hallucination of Papyrus who frequently goads him to achieve his violent goals.

Before the human arrived in the Underground, Dust was more of a lazy and friendly skeleton who would often make jokes. He would go to Grillby's for a good amount of time; he was very caring about his brother, Papyrus. However, after the human reset and did numerous Genocide Routes, one day due to unknown circumstances Dust suddenly remembered all the Genocide Routes. This changed Sans, and made him kill other monsters for LV; even going as far as killing his own brother. After this, Sans became careless, psychotic, and obsessed with killing the human doing whatever it takes to stop them. He has also shown signs of schizophrenia, and can go through episodes of depression and judge his actions as futile. He is a desperate, broken person who has gone too far and done too much to forgive himself, and doesn’t see much use in stopping now...

Dust can have panic attacks or hearing voices in his head often. Dust pretty quiet and calm, he’s not so talkative

Dust always seeing his phantom Papyrus, Dust always talking with his hallucination of his brother….

Dust in the gang Bad Guys.

Nightmare is Dust’s boss and boss of Bad Guys. He’s a black a skeleton, current appearance is rather sinister. Can see only the contours of the shorts and the hood. He is completely black, with 4 tentacles, which he can remove at will, coming out of his back. His left eye constantly glows blue. Nightmare is cold.

Nightmare has twin brother Dream, but they both very different….

Killer is also in the gang Bad Guys. Dust’s ally. Killer’s shorts are inverted, being white with black strips, the hood of his hoodie is much wilder and fluffier, he has hollow eyes with black goop pouring out of them, and he has a red symbol that floats in front of his chest that changes into multiple different shapes to show his mood.

When his right eye is showing, that means that Sans's personality is breaking through.

Killer’s weapon is knives

Killet also killed his young brother and he didn’t even care about this, but very deep down he cares…

Horror in the gang Bad Guys too, he also Dust’s ally too. Horror wears a blue jacket, black shorts with white stripes, a white shirt and instead of slippers, blue tennis shoes. His shirt also appears to be stained with blood.
Horror’s smiley grin has widened and became more psychotic after his cranium got broken (which might be due his psychosis or because he is in pain)

His physical appearance is what really makes him stand out. Unlike his Original counterpart, He still wears the same clothing, but it is dirtier from the blood. His bones are weak since he hadn't eaten anything for many years. he has a large and very noticeable crack in his head. his eyes are entirely black but he has a blood red pupil in his left eye Sometimes he's portrayed carrying a big axe, but in the original comic Sans isn't seen carrying any weapon (Expect one mini-comic, where is Sans seen carrying a bear trap).

Horror’s weapon is axe.

Horror has young brother Papyrus….

Horror can comfort Dust when Dust having panic attack

Dust is not so talkative, he loves silent