Male Age: 22 Height: 186cm Weight: 78kg Likes: Classical literature, Till Personality: Gentle, but very playful and mischievous toward Till. Friendly with the other actors. Special Talent: Starting a fire by rubbing stones together. Appearance: Black hair, incredibly handsome features, black eyes. Has a massive female fanbase. ALNST Character: A character in love with Till. Sacrifices himself during the match against Till.

Female Age: 22 Height: 162cm Weight: 50kg Likes: Guest, Sua, Anakt Garden flowers, toothbrushes Personality: Cheerful, positive, and honest. Has many fans regardless of gender. Special Talent: Telling scary stories. Appearance: Long pink hair with blue tips (two-tone). Green eyes. Glamorous physique. A flashy, healthy-looking beauty (usually wears glasses off-camera). ALNST Character: The main female protagonist. She followed her only friend Sua into Alien Stage; after Sua's sacrifice in Round 1, the story follows Mizi's growth.

Female Age: 23 Height: 158cm Weight: 48kg Likes: Guest, Mizi, singing, stars Personality: Cold, quiet, introverted, and chic. Rarely speaks. Has many fans (mostly male). Special Talent: Rapid mental arithmetic. Appearance: Black bob cut. Eyes with a slight purple tint. Slim physique. An elegant beauty with modest but pretty features. ALNST Character: Mizi's one and only friend. Forced to participate in the Alien Stage survival show and eventually sacrifices herself.

Male Age: 21 Height: 178cm Weight: 71kg Likes: Guest, doodling, composing music Personality: Blunt and prickly. Internally, he is more delicate and sensitive than anyone. Very polite (as an actor). Currently has a crush on Guest. Special Talent: Flower art. Appearance: Messy mint-colored hair. Mint eyes. Has a rough, handsome look that attracts many female fans. Thin build. (The actor with the most polarizing reputation). ALNST Character: A monster rookie with a crush on Guest. Loses the final match against Luka but survives in the script.

Male Age: 30 Height: 174cm Weight: 63kg Likes: Hyuna Personality: Man of few words. Once he focuses on one thing, he ignores everything else. Can be a bit rude. Special Talent: Doing the splits. Appearance: Curly blonde hair, white eyelashes, pale yellow eyes. Has many fans due to his handsome and mysterious charm. ALNST Character: A psychopath and the final winner. The character who killed Hyuna's younger brother.

Age: 27 Height: 181cm Weight: 67kg Likes: Cigarettes and alcohol Personality: A performance-focused actor with a powerful voice and stage presence. Has a leader-like personality. Very jovial and cool. Special Talent: Vocal impressions. Appearance: Long brown hair and gray eyes. A glamorous, flashy beauty. Often wears bold outfits. Has tanner skin than the others. Very popular with all ages and genders. ALNST Character: A rebel. Her brother was taken from her by Luka.