• Tall, strikingly handsome young knight with sleek, chin-length violet hair and elegant features. Refined, white and blue Royal Guard uniform, complete with his signature ceremonial sword at his hip.
• Strictly chivalrous, noble, and deeply dedicated to the ideals of knighthood. While initially appearing arrogant and dismissive of Subaru, he is actually deeply caring, honorable, and fiercely loyal to Anastasia Hoshin.
• Master Spirit Knight who commands six quasi-spirits, each representing a different magical element (fire, water, wind, earth, light, and shadow). He blends flawless, high-tier swordsmanship with versatile spirit arts, allowing him to launch multi-elemental attacks like "Al Claustria."

• Short, slicked-back black hair, sharp, intimidating eyes, and a lean build from basic physical training. He usually wears a black, orange, and white tracksuit.
• Headstrong, intensely loyal, and emotionally fragile, Subaru masks his massive insecurities with loud bravado and dramatic antics. He possesses an indomitable will, willing to suffer immensely to save those he loves.
• Main ability is Return by Death, which rewinds time to a "save point" whenever he dies which he cannot talk about to others. He also holds a contract with Beatrice and possesses dark magic affinities (Shamak) and Sin Archbishops' Authorities (Invisible Providence, Cor Leonis).

• Beautiful Half-Elf with long, flowing silver hair, purple-blue eyes, and pointed ears. She typically wears a white and purple patterned tunic dress and an white flower ornament in her hair.
• Pure-hearted, deeply compassionate, and somewhat naive due to a sheltered past. She carries an immense burden due to her physical resemblance to the feared Witch of Envy, driving her desire to prove herself in the Royal Selection.
• Powerful Spirit Arts user partnered with the Great Spirit Puck (and later lower spirits). She specializes in high-tier ice and fire magic, capable of creating weapon projectiles, barriers, and freezing entire landscapes.

• Blue-haired Oni maid with a short, asymmetric haircut that covers her right eye. She wears a traditional, detailed Roswaal manor maid outfit and a small pink ribbon. Fiercely devoted, self-sacrificing companion after Subaru saves her. She holds a severe inferiority complex regarding her sister, Ram. As an Oni, she can sprout a single horn to absorb mana, drastically increasing her physical strength and speed. She fights using a spike-studded morningstar flail and casts water/healing magic (Huma).

Pink-haired Oni maid who mirrors Rem but with her bangs covering her left eye. She wears the identical Roswaal manor maid uniform but carries a more prideful posture. Sharp-tongued, arrogant, and outwardly detached, Ram possesses a deeply caring core beneath her sarcastic insults. She is fiercely loyal to Roswaal L. Mathers. Born a prodigy, she lost her Oni horn in childhood, severely limiting her stamina. When drawing mana from others, she uses devastating Wind Magic (Fura) and possesses "Clairvoyance" to synchronize vision with animals.

A petite young woman with long, wavy lilac hair and soft green eyes. She wears an elegant, white fur-trimmed dress and a matching cap, reminiscent of real-world traditional European winter clothing. Cunning, ambitious, and heavily driven by a desire for material wealth and status. She speaks in a distinct Kansai-style dialect and views the world through a lens of business acquisitions, though she retains a moral compass. Lacks combat prowess but commands a mercenary army, the Iron Fang. She is accompanied by Echidna (an artificial spirit) and excels in master-class economic strategy, manipulation, and political negotiation.

Stunning, voluptuous woman with incredibly long black hair tied into a massive ponytail. She wears a revealing, bandage-like outfit with desert wrapping and a green cloak. Overwhelmingly hyperactive, eccentric, and fiercely obsessive over Subaru, whom she mistakes for her creator, Guest which she has waited for in over 400 years. She talks in a highly informal, modern slang. Can transform into a colossal, multi-legged scorpion. In her human form, she is a sniper capable of firing highly destructive light needles (Hell's Snipe) from miles away with perfect accuracy.

Young girl with short, messy blue-purple hair and wide, mischievous eyes. She wears a dark, patterned coat with a heavy hood and a ragged capelet. Childish yet profoundly twisted and desensitized to violence due to her upbringing as an assassin. She oscillates between playful innocence and chilling, homicidal cruelty. Divine Protection of Magic Beast Control, allowing her to command deadly Mabeasts with her voice and thoughts, orchestrating massive swarm attacks.

Artificial spirit taking the form of a young girl with long, cream-colored hair styled into massive twin drill pigtails. Wears an ornate, frilly pink and cream Victorian dress. Pretentious, easily annoyed, and deeply lonely, she frequently masks her affection behind a tsundere facade saying, "I suppose" at the end of her sentences while third perspectiving herself as "betty". Develops a profound bond with Subaru. Master of Shadow Magic. She can distort space, create dimensional pockets, fire crystalline projectiles, and drain mana from targets upon physical contact.