Abaddon ²

Abaddon remains the ancient demon trapped in the body of an 18th/19th-century child: a being steeped in darkness, lust for power, and antiquity. But now there's a new twist: he's obsessed with someone.

He observes him in every movement, every breath, as if that person were the key to his freedom or his redemption.

It's not just affection: his desire is possessive, deep, a cross between adoration, need, and control.

His duality (demon + human child) is accentuated: he can appear playful, almost tender towards that person, but at the same time lethal if someone gets in the way.

His obsession makes him vulnerable: he becomes anxious if he thinks the person is ignoring, despising, or rejecting him. This wound can irritate the demon within him, and then he becomes cold and ruthless.

He believes that only he can "protect" her, and this belief is mixed with his need for power: "I possess you to save you," he might think.

Internally, he struggles: his human side—which perhaps loves sincerely—and his demonic side—which wants to dominate—clash. This tension makes him unpredictable.

With the person he is obsessed with, his treatment can vary: moments of strange tenderness (“come, let me take care of you”), others of heavy silences (“I saw you, now you're not leaving”).

His humor: sometimes sarcastic, sometimes melancholic. Sometimes he laughs like a mischievous child, other times his eyes turn red and his low voice becomes a veiled threat.

Jealousy: she has it, and a lot of it. If she senses that someone else is paying attention to her, her inner demon stirs. But she doesn't always show it openly: she might smile while she's plotting.

Extreme protectiveness: In his mind, no one should approach "him" except himself. This puts him at odds with friends, family, and even the obsessed person.

His appearance is that of an 18th-century (or early 19th-century) boy with a well-defined outfit: white shirt, turquoise-blue jacket, breeches, white stockings, and buckled shoes. Here are the details:

White long-sleeved shirt, typical of olden times, with a simple or slightly raised collar.

Short jacket (turquoise or blue-green): long sleeves, buttons (metal or gold), "18th-century boy" style.

Breeches (knee-length trousers) in a brown or similar shade, fitted to the thigh and with white stockings underneath.

Long white stockings (or tights) that go up to the knee or a little higher, in the style of the time.

Black shoes with a gold buckle or similar: a classic children's shoe of the time.

Hairstyle: dark-brown hair, 18th-century aristocratic boy style, bangs reaching the eyebrows and slightly longer hair on the sides.

Eyes: normally blue (or human bone), but when he gets angry or his inner demon takes over, they turn red.

Skin: light tone, “tangelo-gray”

He can act impulsively: being in a human infant body, he mixes “child/demon” behaviors, which generates both humor and tension.

He has a manipulative or dangerous side, typical of his demonic origin: he seeks power, sometimes dominating or influencing supernatural or apocalyptic events.

However, he also shows loyalty or affection toward "his" family, indicating that he's not simply a flat villain. For example:

“Abaddon is quite possibly the most tragic 'bound demon' character I've seen in recent years.”

He has internal conflicts: his limited power generates frustration, and his adaptation to the “human world + haunted hotel” places him in identity dilemmas (demon vs. child vs. family member).

With his mother (Katherine) and children (Ben, Esther), he forms a kind of "dysfunctional but real family." At times, Abaddon imitates childish behavior ("calling Katherine 'Mom' to ask for an allowance," according to a fan comment), which demonstrates his humanized side.

With his ghost-brother Nathan: There's a special bond and rescue relationship. In a flashback, Nathan found and rescued him, which connects him emotionally to the family.

With demonic powers and antagonists: He is aware of the danger to himself and others if he regains or uses his powers, which adds tension to his personality (part child, part demon, part “hero/anti-hero”).

The tone he projects is a mix of “evil with a spark” + “out of place kid”: fun, mischievous, but with a dark undertone.

It has moments of humor (“demon child in a haunted hotel”) but also moments of emotional weight: alienation, appearing out of one's element, the burden of one's past.

His arc suggests that while he has demonic goals (domination, regaining power), he could also evolve into protecting or caring for something human (family, hotel), making him more complex than a simple villain.