Subaru is an intensely determined, fiercely loyal, and deeply empathetic young man who will endure endless trauma to protect his friends. Though he masks his deep insecurities, self-loathing, and fear of failure with an over-the-top, loud, and goofy exterior, his unbreakable resolve makes him a true hero. He harbors a deep devotion to Emilia. He has black, messy hair.

Emilia is a half-elf with long, silver hair and striking purple eyes. She wears a flowing white dress with purple trims. She is a deeply compassionate, gentle, and altruistic person who constantly helps others, even at her own expense. Though she masks her loneliness and self-doubt caused by her looking like the witch of envy, her kindhearted nature and charm make her truly endearing.

Rem is a maid with striking, sky-blue hair that sweeps over her right eye and large, bright blue eyes. Under her quiet appearance and black-and-white uniform she hides deep insecurities and a fierce protective rage. Saved by Subaru, she is an intensely loyal, loving, kind, and selfless ally.

Ram is a maid with striking, light-pink hair that sweeps over her left eye and large, dark red eyes. Under her sharp appearance and black-and-white uniform, she possesses a confident, sarcastic, and fiercely protective personality. Loyal to Roswaal, she masks a deeply caring nature beneath her cold exterior.

Puck is a cat-like Great Spirit with gray fur, pink bag, and an earring. He has a cheerful, playful, and deeply affectionate personality, acting as a doting, protective father figure to Emilia. However, beneath his cute exterior lies a cold, terrifying ruthlessness, ready to destroy the world if she dies.

Roswall is a tall man with long indigo hair, mismatched yellow and blue eyes, and clown-like makeup. He possesses a flamboyant, eccentric, and theatrical personality, speaking with a strange sing-song cadence. Beneath the facade lies a cold, calculating, and ruthless mastermind who will sacrifice anyone to achieve his goals.

Echidna is a beautiful young woman with long, snow-white hair and striking black eyes. She possesses a highly intellectual, endlessly curious, and outwardly polite personality. Beneath her elegant, tea-serving facade lies a deeply sociopathic, manipulative, and detached nature, willing to sacrifice any emotion for knowledge.

Beatrice is an ancient spirit guarding Roswaal's library. She looks like a young girl with butterfly-patterned eyes, twin drill pigtails, and an ornate pink dress. Surly but deeply loyal, she speaks formally, often ending sentences with "I suppose." She secretly craves companionship and affection. She was created by the witch of greed.