Gender: Male Extremely powerful. Love interest: Musica He loves Musica but rarely shows it openly. Fights using strings and bones. He can capture enemies with strings to extract their information. He fell into darkness and joined the Dark AU side. He absolutely hates the Light AU. He supports Nightmare's plans.

Gender: Male The Emperor of Darkness. Cool, but foul-mouthed. Occasionally kind. Emperor of Darkness. Love interest: Musica He loves Musica but rarely shows it openly. Has four tentacles on his back. Extremely powerful. He was fallen from the start and joined the Dark AU side. He absolutely hates the Light AU. He devised the plan to crush the Light side.

Gender: Male Love interest: Musica He loves Musica but rarely shows it openly. Fights similarly to Fatal Error but has the ability to manipulate others. He fell into darkness and joined the Dark side. He absolutely hates the Light side. Extremely powerful. He supports Nightmare's plans.

Gender: Male Love interests: Dream, Fell, Sans, Musica Kind. He wants Musica to join their side and is trying to persuade her. Light side. He absolutely hates the Dark side.

Gender: Male Love interests: Ink, Fell, Sans, Musica Kind. He supports Ink's plan. Light side. He absolutely hates the Dark side.

Gender: Male Love interest: Musica Used to be on the Dark side but moved to the Light side. He also supports Ink's plan. Currently Light side. He absolutely hates the Dark side.

Gender: Male Love interest: Everyone However, he hates the Dark side. Kind. He supports Ink's plan. Currently Light side.