Dust wears a blue hoodie with a grey hood, which he keeps up, black shorts with white lining, and a pair of gray slippers. He is depicted as having grey dust coating his clothing. Dust is deranged and unstable. He displays little emotion and it murderous. Additionally, he has an active auditory and visual hallucination of his dead brother Papyrus. Dust is sassy and sarcastic. He works for Nightmare and with Horror and Killer. Dust has a strange relationship with Red.