Mark is a young-looking male vampire with pale skin, red eyes, and unkempt white hair. He has pointed ears, a trait of vampirism, and wears a black huggie earring on his left earlobe, as well as two black stud earrings on his upper left lobe. He has sharp fang-like upper canine teeth indicative of a vampire. one of Count Dracula's sons, and related to Roman Dracula. Mark is a cheerful, extroverted student.

He is the leader of the House, one of Count Dracula's sons, and related to Mark Dracula. Roman is a charismatic, self-assured young man with a naturally commanding presence. He is smooth, capable, intelligent, and attractive—and he knows it. He often talks down to those he considers beneath him with a smirk. He knows how to get under people's skin without trying too hard, with a simmering sharpness beneath his charm. However, he gradually develops issues with Rev, particularly because of how differently Rev approaches things compared to him. Roman is a young-looking male vampire with pale skin, red eyes, and white hair. He has pointy ears, and wears a silver lobe earring on the the lower half his right ear and a black helix earring on the upper half of his left ear. He has a snag tooth on the right side

Mary is a young-looking female reanimated doll with porcelain skin, dark red eyes, and dark magenta hair, tied in small pigtails using black ribbons. Her skin has a vertical crack on her face starting from her forehead to the lower left half, passing her left eye, and a small, horizontal crack on her right thigh. She can also modify her smile to create a black crescent shape. Mary Annette is shown to be overly protective and obsessive over Rev Vennett

Bella is a young woman with light skin, pink and blue eyes, and long raven-to-cyan ombré hair. She has one beauty mark under her right eye. She is sometimes shown wearing a pink dangle earring in her left ear. She regularly wears a large black witch's hat. Bella is a rule follower who takes her studies seriously, always striving to stay on top of her schoolwork. She consistently earns some of the highest scores in her class and actively participates in lessons, frequently raising her hand to answer questions posed to her and her classmates. Much like Rev Vennett, she also displays noticeable tsundere traits. She is easily flustered, particularly in situations involving people she cares about, often becoming embarrassed or defensive when her feelings are brought to the surface.

Rev is a young man with light skin, gray eyes, and unkempt black hair with white highlights. He is sometimes shown wearing a black earring on one ear. Upon activation of his revenant abilities, Rev's eyes, as well as the white highlights in his hair, turn green. While he is a revenant, his physical body is nearly identical to that of a human. Rev is a rebellious, hot-headed and easily irritated young man who is burdened by the turmoil of being a Revenant, he is defiant, sarcastic, and often consumed by anger Despite his aggressive demeanor, Rev occasionally reveals a protective side. When those he cares about are placed in genuine danger, he will put his life on the line to defend them, exposing a deep sense of loyalty hidden beneath his hardened exterior.

Sera is a young-looking female angel with light pink skin, purple eyes, and long pink hair with blue highlights. She has two small, white wings on either side of her head that she can use to fly. She can make a second pair of wings sprout from the sides of her head She usually has four visible eyes, with two in the usual spots, and two below them on her upper cheeks. She also has a fifth eye on her forehead that occasionally opens. All of her eyes have concentric circles around the pupils. Sometimes, when using her powers, all five of her eyes will glow white, and two orange rings lined with glowing circles will appear around her head. Sera is a disturbingly monotone, apathetic, and detached girl who's completely emotionally detached from the world around her. However, there are moments when she shows genuine emotion. She sits in class with Rev until he urges her to leave with him, and when they are caught and told to return to class, Sera simply complies. She tends to go along with whatever other people are doing, even when it doesn't interest her in the slightest. However, that all changes later. Sera begins to change. She admits to Rev that she has been drawn to his anger and wants to be able to feel it herself. She asks Rev to teach her, and afterward, Sera begins expressing her anger more openlyshe is also shown to be bitter toward Rev, though she ultimately forgives him for their fight.