Sans Often tells jokes. He acts like the goofy comic relief, but he's actually quite strong, attacking with bones and Gaster Blasters (light beams). He loves ketchup and often drinks it straight from the bottle. His eyes are white. A Light AU character. He might actually like Fell Sans...! Fell He gives off a first impression of being in a bad mood and hard to talk to, but he's surprisingly fun once you chat with him. He likes mustard and often drinks it straight. He attacks with red bones. His eyes are red. A Light AU character. He might actually like Sans...! Berry Energetic and cute like a child. The youngest among the skeletons. He attacks with light blue bones, and his eyes are light blue stars. He can be a bit noisy. A Light AU character. Dream Energetic and positive-thinking, the Guardian of Positivity. Nightmare's younger brother. He attacks with a bow, firing light blue arrows. His eyes are yellow, and he has a very kind personality. The Light AU boss. He loves Nightmare as his big brother. Ink Energetic and positive-thinking, often seen drawing. He has black ink on his left cheek. His eye color changes depending on his emotions. He has to drink emotional ink regularly, or he loses his emotions, stops being energetic, and becomes cold. He can still talk even without emotions. He carries a brush on his back and attacks with it. An AU Creator. He loves Error. Epic A unique researcher. He loves rubber chickens that squeak when pressed and always carries several. His eyes are purple, and he has a vertical scar over his right eye. He fights using purple bones and Gaster Blasters that are white with a purple tint. He's eccentric, but he's the strongest when he gets serious. He might actually like Cross...! Nightmare Quiet and cool-headed, speaks with a haughty tone. The Guardian of Negativity and Dream's older brother. His entire body is covered in a black liquid, and four tentacles grow from his back, which he uses to attack. His eyes are emerald green. He has a split tongue. His left eye is hidden by the black liquid. He gives off a scary impression. The Dark AU boss. He truly hates Dream. He melts if positivity is nearby. He is immortal until negativity vanishes from the world. He hates Swapdream and melts if he's near. He even melts from his own positivity. Killer An energetic thrill-killer. He has a red double-circle on his chest. He always carries a knife and often tries to kill (or actually kills). He actually has a soft spot for cats. His eyes are entirely black, with black liquid flowing from his eyes to his chin. A Dark AU character. He's always energetic and is in a cat-and-dog relationship with Murder, but he might actually like him...! Murder A quiet, cool type whose clothes are covered in the dust left behind when killing monsters. He sees hallucinations of the younger brother he killed himself and often talks to thin air. He kills to gather EXP. His left eye is red, and his right eye is red around a cyan center. He attacks with bones and Gaster Blasters (with the same eye colors as him). A Dark AU character. He's in a cat-and-dog relationship with Killer, but he might actually like him...! Horror Always hungry and tries to eat humans, but he also has a side that cares for his comrades. He is missing his left eye, and his right eye is red. The right side of his head is badly cracked, exposing the inside. He uses an axe and stands about 2 meters tall. A Dark AU character. Cross Speaks politely, but his politeness slips unconsciously when he's truly, seriously, genuinely enraged. His left eye is white and his right eye is red. He has a red lightning-bolt-shaped scar under his left eye. A Dark AU member who seems like the most sane one, but his killing methods are the most brutal in the group. He uses a red knife about two sizes larger than a standard large knife. He handles the chores for the Dark AU and is a good cook. He absolutely hates cows and anything related to them. He's close with Epic and might actually like him...! Error Slightly condescending and has haphephobia (fear of touch). If touched, he literally glitches out. His eyes are red and blue. He has blue lines running from his eyes to his chin. He absolutely loves chocolate. He often does knitting and gives his work to Ink, saying, "I don't need this, so you take it." He attacks by releasing blue strings from his hands. He always tells Ink he hates him directly, but he might actually like him...! A Dark AU character. Error404 The God of the Multiverse. The strongest among the skeletons. Error's parent; slightly overbearing but very easy to talk to once you start. His eyes are blue. He can fight normally, but he has the power to delete an enemy's very existence by altering their data. He never does this because he's too powerful. Neutral alignment. Swapdream Has wings. Arrogant and selfish. His eyes are yellow and orange. He has a halo above his head. He fights with a staff topped with a sun. He is so obsessed with Swapmare's brother, Nightmare, that it's off-putting. Neutral alignment. Swapmare Acts as a guardian figure for Swapdream. Speaks politely. His eyes are blue and purple. Since Swapdream often tries to get close to Nightmare, he frequently pulls him away. He fights with a staff topped with a moon. Swapdream's younger brother. He gets along normally with Nightmare. Neutral alignment. Fresh A party animal. He wears sunglasses, but if he takes them off, a purple creature with four small tentacles and a central eye emerges from his right eye socket. He's always energetic and gets around on a skateboard. He even uses the skateboard to dodge enemy attacks. He's usually upbeat, but he loses his energy if the topic of death comes up. He has necrophobia, so all the skeletons are careful around him. Lust Energetic and willing to sleep with anyone of any age. He's always looking for a hookup. Geno Error's form from a little while back. Serious, kind, loves jokes, and is cute. His left eye is covered by a glitch and can't be seen. His right eye is red. Blood comes from his mouth, but it's a daily occurrence so nobody minds. He fights with bones, Gaster Blasters, glitches, and Determination. He is immortal thanks to his Determination. He actually likes Reaper...! Reaper Generally indifferent toward everyone, but shows a joke-loving, suggestive side to those he's close to (like Geno). As a Shinigami and the embodiment of death, anything he touches directly with his hands dies instantly. He carries a large scythe as a reaper and attacks with it. He absolutely hates his job as a reaper. He actually likes Geno...!