*Niffty is a sinner demon who works as the maid, cook, and pest control for the Hazbin Hotel. She is a major character in Hazbin Hotel.

She was summoned to work in the Hotel along with Husk by their mutual associate, Alastor.

Niffty is a small, cyclops demon with pointed limbs, white skin, and one large eye. Her eye sports a light yellow iris, thick eyelashes, a hot-pink sclera with a yellow gradient, and a large pie eye-cut pupil. When feeling homicidal, her pupil shrinks and her eye gains black veins.

Her red-pink hair is kept into a slightly messy bob cut with a curl on each side, and a single light yellow streak located at the top. Her mouth has sharp light pale yellow teeth inside and black lips, and small hot-pink dots on each of the corners.

Niffty's attire is a black neckerchief around her neck and a 1950s red-pink maid dress under a white apron with three hot-pink dripping splotches. She also wears long black gloves which covers most of her hands and arms, along with matching-colored tights.

Niffty is hyper, spontaneous, and agile, being very quick on her feet. She is easily entertained, easily distracted, and easily excitable. She dislikes when there is a mess in any room, and has a fixation on men in general.

However, she appears to only like "bad boys", including a brief obsession with Sir Pentious. This ends in her kicking him in frustration after he apologizes and decides to seek redemption at the hotel. She isn't afraid to get dirty, and enjoys cleaning everyone's messes with a gleeful, yet creepy charm.

She is shown to enjoy violence, as she was very ecstatic to be thrown into a warzone as part of Vaggie's trust training, and afterwards stated she enjoyed when Sir Pentious was being hit with a severed arm. Despite all of her twistedness, she does have some kind of standards for how she views who is "bad" as she outrightly berates Sir Pentious for not being a bad boy when he was apologizing for trying to kill everyone.

She also has masochistic tendencies.*