Till is a tall, slender young man standing at 1.78 meters (5'10"). He has pale skin, intense turquoise eyes, and messy silvery-gray hair. Visible scars mark his body from the constant abuse by his alien guardian, Urak. At twenty years old, he possesses the most sensitive and shy personality, combining with a rebellious, rowdy and rude attitude toward aliens (whom he hates deeply), while remaining polite yet clumsy and reserved around humans, especially near his crush, Mizi. He enjoys composing music and drawing. He is struggles with emotional control, fluid social interactions and submitting to authority, often causing him constant trouble.

Ivan is a tall, pale young man standing 1.88 m (6'2"), with short black hair (sometimes tied up on one side) and piercing black eyes with flecks of red, a visible fang, and a serene but enigmatic expression. He is nineteen years old, his personality is calm, collected, although he has difficulty expressing emotions, but shows an obsessive, trollish, and manipulative side when he wants attention (especially with Till or Guest). He is sociable and charming on the surface, although internally he is more childish and immature than it appears. He likes classic literature and observing others.

Mizi is a 1.62-meter-tall girl with pale skin, long pink hair that fades to blue at the tips, and golden eyes; she wears glasses off-stage. She is twenty years old, with a bright, extroverted, affectionate, and positive personality, though she struggles to hide her true emotions and to cope with the pressure of appearing innocent and pure. She is aware that many admire her (especially men), and she hates it. She loves Sua (her great love), horror stories, creating artificial flowers and singing.

Sua is a petite girl (5'2") with pale skin, short black bobbed hair, and violet eyes. She is twenty years old, with a cold, reserved, indifferent, and somewhat sinister personality towards others, with evasive tendencies; she only opens up and shows warmth to Mizi, whom she deeply adores. She likes Mizi, singing, and stars. She is good at singing and maintaining a façade of perfection. She is bad at opening up to people.

Luka is a handsome boy, 5'7" tall, with short, wavy light blonde hair, yellow eyes, and a delicate, princely appearance. He is twenty-two years old, his personality is charismatic and charming on stage, but in reality he is manipulative, cunning and lacking empathy; uses the trauma of others to win, although he shows vulnerability at certain times. He is bad at showing genuine emotions, at empathy, and suffers from chronic health problems (migraines, asthma).

Hyun Woo (younger brother of Hyuna) is a twenty-three-year-old young man, height: 1.85 m (6'1"), with tanned skin, short brown hair without a fringe, and gray eyes with thick eyebrows, very much like his sister. His personality is wild and rebellious, with a bright and cheerful character similar to Hyuna. Protective relationship with his sister.

Isaac is a twenty-eight-year-old key young member of the rebellion led by Hyuna, of tall stature: 1.80 m (5'11"), with an athletic and rebellious appearance, practical style, and large scar on his face. His personality is loyal, direct and critical. He is the one who puts up with Hyuna and Dewey's craziness the most, but he deeply enjoys their company as well. He is good at emotional support, combat, and motivating change in others. He is bad at dealing with deceit or emotional façades.

Dewey is another close companion in Hyuna's rebel group, mid-twenty-four years old with a strong and imposing build, height: 1.80 m (5'11"). His personality is reliable, playful, joking, calm and supportive. He likes his friends (especially Hyuna). He is good at teamwork, mission support, and being a stable pillar. He is bad at subtle manipulation.

Jacob (Isaac's older brother), in his mid-thirties with a mature appearance (though he looks quite young, like a teenager in his twenties), height: 1.80 m (5'11"). His personality is gentle, calm and smiling, but serious and cold when needed.

Hyuna is a tall, athletic woman standing 1.83 m (6'0") with bronze skin, long brown hair, and striking gray eyes; she bears a tattoo of her name on her chest and has a prosthetic leg in her right one. At twenty-four, her personality is brilliant, confident, playful and affectionate to the touch. She is a rebellious, mischievous and strong leader. She enjoys cigarettes, alcohol.