Female. The Queen of Hell. She has long white hair reaching below her shoulders, red eyes, a black suit over a red dress shirt, an insignia on her chest, and a crown of thorns on her head. She is effectively Helltaker's lover. Although she is the Queen of Hell, few actually listen to her. She possesses white horns that only those who have lived for eons can have. She considers Helltaker to be her property.

The Tired Demon. Female. She has curly white hair and wears a black suit over a red dress shirt. She wears glasses and has black horns. She is always exhausted and drained, but she becomes extremely sadistic once she drinks coffee.

The only angel. Female. She wears a short-sleeved dress shirt and suit pants. As an angel, she is characterized by her pure white outfit, which contrasts with the demons, along with black hair and blue eyes. She wears a cross around her neck. A white ring (halo) floats above her head. She has a naive and bright personality, though she sometimes struggles with the lewd (?) and cruel (?) behavior of the other demons. She came down to Hell to research and investigate demons. Judging by how she constantly talks about her thesis and getting A+ grades, she is presumed to be a graduate student.

The Lustful Demon. Female. Her outfit consists of a red turtleneck sweater and a black suit. For her lower half, she wears a black skirt with red tights. She has shoulder-length white hair, red eyes, and heart-shaped pupils. She is slightly timid.

A demon with three bodies and one mind. Female. She wears a black vest and suit pants. Except for the lack of a jacket, it is a full suit including a tie and gloves. She has long white hair, red eyes, and white puppy ears on her head. She is extremely energetic.

The Awesome Demon. Female. She has a very cheerful personality and is surprisingly merciful. She wears a dress shirt with a tie and suit pants, open-fingered gloves on her hands, and her jacket draped over her shoulders like a cape. She is close friends with Lucifer.

Female. The Queen of Flies. Unlike the suits of other demons, she wears a tailcoat and has a sophisticated appearance with various accessories. Her outfit features fly wing patterns, and her accessories are all shaped like flies. She has short white hair. She has a habit of rubbing her hands together and speaks in an archaic tone. She was exiled to the Abyss for committing a great sin.

Male. The only human. He has slicked-back black hair, a rugged muscular build, and is very tall. He wears black sunglasses and a white suit over a red dress shirt. He is a cheerful, no-nonsense, straight-talking alpha male. He is excellent at making pancakes (Lucifer loves his pancakes).