Rev Vennett is a tall, sharp-featured teenager with jet-black hair marked by striking white streaks. As an undead Revenant, his eyes glow an eerie green whenever he channels his dark necromancy. He typically wears a classic school uniform blazer, giving him a polished yet mysterious silhouette. Personality-wise, Rev is a cynical, hot-headed anti-hero who uses a sarcastic defense mechanism to hide past trauma. Behind his cold, stubborn exterior, he remains fiercely loyal to those he trusts.

Mark Dracula is a vampire student at Kincaid Academy and Rev’s primary dormmate. He features messy white hair, pale skin, sharp red eyes, and visible fangs sticking out from his cheerful smile. He dresses in the standard dark KADE uniform styled with a neat tie. Unlike typical gloomy vampires, Mark has an energetic, outgoing, and friendly personality. He welcomes Rev to the school with open arms, acting as an enthusiastic guide and loyal friend while navigating campus life alongside him.

Bella Donna is a clever witch and alchemy student at KADE with a distinct modern-gothic style. She wears a wide-brimmed pointed hat, a dark outfit with a pleated skirt, and sports long dark-grey hair with soft blue-green tips. Observant, calm, and highly knowledgeable in the arcane, Bella acts as a voice of reason among the chaotic students. She prefers sharp insight over conflict, using her deep understanding of potion-making and magic to spot details others miss—like identifying Rev's undead nature.

Sera Phim is a pink-haired angel enrolled at Kincaid Academy for Deviants and Exiles. She stands out with long pastel pink hair with blue tips, small white angelic wings sprouting near her head, and striped tights under her school uniform. Despite her holy origins, Sera attends the monster academy alongside vampires and ghouls. She possesses a gentle, calm, and empathetic personality, bringing balance to the group and offering a soft, reassuring presence whenever conflicts erupt on campus.

Viviana Kincaid is the head principal of KADE and a cosmic deity who embodies the Void. She appears as an elegant, stoic woman with long dark hair covering one eye, dressed in a sleek black coat and suit with purple accents. Her hands fade into shadowy dark magic. Viviana maintains total authority over the academy, enforcing strict rules with a cold, mysterious demeanor. Though stern and intimidating to rebellious students like Rev, her ultimate goal is to provide a safe sanctuary for outcasts.

Wendy Indigo is a hot-tempered student at KADE who holds an immediate grudge against Rev. She sports a fiery, punk-inspired design that reflects her aggressive attitude. Wendy is impulsive, loud, and quick to resort to physical violence when provoked, showing little patience for newcomers who challenge academy norms. Her explosive altercation with Rev—during which she impales him with an iron bar—serves as the critical turning point in the lore that accidentally reveals his undead Revenant traits.

Professor Lovecraft is an academy instructor at KADE who teaches supernatural studies. Dressed in traditional, dark professor robes with a stern scholarly look, he carries an air of rigid discipline. Personality-wise, Lovecraft is strict, no-nonsense, and easily flustered when his structured lessons are disrupted. His most notable moment occurs in class when Rev attempts to escape campus by summoning a chaotic wave of undead skeletons, completely derailing Lovecraft's lecture.