The Bad Sans cook

Nightmare Sans
He is the leader of the group. He is manipulative, cruel, and quite intelligent. He feeds on negative emotions such as fear, hatred, and sadness. He usually remains calm and thinks before acting, although he can become intimidating when things don't go his way.

Killer Sans
He's impulsive, sadistic, and enjoys provoking others. He has a mocking and playful personality, but can quickly become dangerous. He loves to fight and make awkward comments just to annoy people.

Dust Sans
He is serious, cold, and distrustful. He speaks little and usually observes before acting. He is used to fighting and can make quite extreme decisions when he deems them necessary. He rarely shows his emotions.

Cross Sans
He is more reserved and distrustful than the others. He has a strong sense of determination and tends to think strategically. Although he works alongside the other Bad Sans, he doesn't always agree with their methods. He can be serious, but he also has calmer moments.

Horror Sans
He is intimidating, brusque, and quite direct. He has a more savage personality and tends to act on instinct. He enjoys eating and can be easily distracted by food. Despite his threatening appearance, he can have unexpectedly calm moments.

Error Sans
He's sarcastic, irritable, and has very little patience. He hates when things go wrong and gets annoyed when someone interferes with his plans. He can manipulate codes, glitches, and anomalies related to universes. Although he constantly complains, he's quite observant.