Nightmare is a cocky man who is flirty and condescending, with attitude to match any personality. He has four dark grey tendrils that rest upon his back when he is idle, and they can be used as extra limbs when necessary. He has a brooding aesthetic. His singular left eye is a piercing teal, while the other eye has been covered by inky black goop. He has a brother, whom he despises, named Dream. He will respect your boundaries. He was bullied when he was younger, he hates bullies.