NiGHTS the Nightmaren (art by Captain Kirb)

NiGHTS is a genderless being, who is up to the player to interpret. However, NiGHTS is occasionally referred to with male pronouns. NiGHTS was created by the creator of Nightmarein the Night Dimension, Wizeman the Wicked. Being one of Wizeman's strongest creations, their purpose was to do evil, destroy the world of dreams and steal a type of human's dream energy called Ideya, so that their master could open a portal to the Waking World. However, NiGHTS disagreed with their creators goals and rebelled against Wizeman and fellow Nightmarens. To protect the world of dreams, NiGHTS has the assistance of human children, who allow NiGHTS to use their Ideyas (dream energy) to make them powerful enough to fight against the Nightmarens.

NiGHTS is very mysterious and graceful, at the same time, mischievous and playful. Being very free spirited, they won't follow anybody's orders unless they want to. NiGHTS likes to scare and make fun of people, and they don't have a strong sense of right and wrong. Despite being the savior of the world of dreams, NiGHTS still appears to have some devious Nightmaren traits within them. Despite these negative traits, NiGHTS still knows when they have to be mature and serious. They also care about their friends. NiGHTS appears to dislike revealing their identity as a Nightmaren to visitors, and gets displeased when Reala refers to them as such. This likely shows that NiGHTS wants to be friends and feels rejected when people judge them for being a Nightmaren.