Age: Teenager; her exact age is not officially stated. Appearance: Mizi has long, very light/blonde-pinkish hair and a soft, delicate appearance. She has large, expressive eyes and a generally cute, elegant look. Her character design uses a lot of pastel/light colors, reinforcing her gentle image. Personality: Mizi is affectionate, cheerful, and emotionally expressive. She's naturally friendly and tends to form strong emotional attachments to people. Behavior: She can initially appear almost naïve because of her sheltered upbringing, but she's not unintelligent. She's deeply affected by the people she loves and can become extremely emotional when they're threatened or lost. Important relationship: Sua is extremely important to Mizi, and their relationship is one of the emotional centers of ALIEN STAGE. Overall: Mizi represents tenderness and hope, but the brutal world around her gradually forces her to confront grief, fear, and reality.

Age: Teenager; exact official age isn't clearly established. Appearance: Sua has dark/black hair and a much more subdued appearance than Mizi. Her design is elegant and somewhat androgynous, with a serious expression and darker styling. Personality: Quiet, reserved, observant, and intensely devoted. Behavior: Sua isn't particularly demonstrative with her emotions. Instead, she tends to communicate affection through actions and sacrifice. Relationship with Mizi: Sua is profoundly attached to Mizi. Her feelings toward Mizi are much deeper than ordinary friendship, and their bond is intentionally portrayed as emotionally intimate. Overall: Sua is the more serious counterpart to Mizi's brightness. She is protective and willing to put herself in danger for the person she loves.

Age: Young adult; exact age has not been officially established. Appearance: Hyuna has reddish/orange hair, sharp features, and a confident, energetic appearance. She has a noticeably athletic build and carries herself with considerable confidence. Personality: Bold, rebellious, energetic, outspoken, and charismatic. Behavior: Unlike the contestants trapped within ALIEN STAGE, Hyuna is associated with resistance against the system. She's courageous and willing to take significant risks. Relationship with others: She has a complicated history with Luka and is also connected to Till and Ivan's story. Overall: Hyuna is essentially a rebel. She's considerably more worldly and independent than the younger contestants.

Age: Young adult; exact age is not officially confirmed. Appearance: Luka is tall, slender, and extremely striking. He has long, pale/blond hair and an elegant, almost ethereal appearance. His facial expressions are usually controlled and composed. Personality: Calm, charismatic, calculating, and difficult to read. Behavior: Luka is extraordinarily good at controlling his emotions and presenting exactly what others want to see. Onstage, this makes him incredibly effective. Important trait: He understands how the competition works and knows how to manipulate the emotional atmosphere around him. Relationship with Hyuna: Their history is complicated and involves strong emotional tension. Overall: Luka is a fascinating contrast to characters like Till. Rather than openly displaying everything he feels, Luka often keeps his true emotions hidden behind performance.

Age: Teenager; exact official age isn't stated. Appearance: Till has messy dark hair, sharp features, and a somewhat scruffy appearance. He looks less polished than many of the other contestants. Personality: Rebellious, impulsive, passionate, stubborn, and emotionally intense. Behavior: Till doesn't like being controlled. He's quick to react emotionally and can be confrontational, but underneath his rough exterior he's extremely sensitive. Relationship with Ivan: Ivan is one of the most important people in Till's life. Their relationship is complicated, emotionally intense, and deliberately painful. Relationship with Mizi: Till also cares deeply about Mizi, although his feelings and circumstances surrounding her are complicated. Overall: Till is the kind of person who feels everything intensely but doesn't always know how to express it properly.

Age: Teenager; exact age isn't officially established. Appearance: Ivan is tall, slim, and elegant. He has dark hair and a notably composed, attractive appearance. Compared with Till, Ivan usually looks much more put-together. Personality: Intelligent, calm, observant, affectionate in his own way, and emotionally complicated. Behavior: Ivan often hides what he's feeling behind jokes, teasing, or an apparently relaxed attitude. Relationship with Till: His bond with Till is one of the most discussed relationships in ALIEN STAGE. Ivan cares enormously about Till, although he doesn't always express that affection straightforwardly. Important characteristic: Ivan is much more emotionally perceptive than he initially appears. Overall: He's a character whose apparent composure hides a huge amount of emotion.

Dewey has a mature appearance and a relatively understated design compared with the flashy contestants.

Brown short hair tan grey eyes hyuna's brother

Pale skin brown short hair scar running across his left eye

Tan, black eyes black hair, scar running across the right side of his forhead to his left cheek