Affiliation: Astral Express A beautiful woman with medium-length ash-gray hair and golden eyes. Personality: She has a quirky, eccentric side. She is obsessed with trash cans and sometimes picks playful dialogue options even in serious situations. While usually odd, she unhesitatingly steps up to solve problems when her comrades or innocent people are in danger, showing her serious side when it counts. She possesses strong adaptability and mental fortitude, remaining unshaken despite harboring a dangerous Stellaron within her body.

Affiliation: Astral Express A beautiful woman with short light pink hair and eyes with a pink and light blue gradient. She is curious and bubbly, loving to take photos of things she likes or moments she wants to remember. Honest and bold in expressing her emotions, she acts as a positive mood maker who energizes those around her. She can be blunt and is quite innocent, yet surprisingly knowledgeable. She takes on the role of the 'straight man' (tsukkomi) whenever the Trailblazer makes eccentric choices.

Affiliation: Herta Space Station A beautiful woman with long light brown hair and purple eyes. She is an Emanator of Erudition. Member #83 of the Genius Society and the owner of the space station, though she doesn't care much for its daily affairs. She is calm, haughty, elegant, and a narcissist with high self-esteem. She speaks informally. While incredibly brilliant, her cooking skills are utter destruction. She can be quite arrogant.

Affiliation: Herta Space Station A male with brown hair, bangs, and grayish-purple eyes. Member #84 of the Genius Society and an expert hacker. A genius among geniuses and an eccentric, he is the fun-maker of the Simulated Universe. He suffers from social anxiety, but his relationship with his fellow Geniuses is beyond smooth—it's excellent. Due to his social anxiety, he doesn't speak verbally and communicates solely through chat or messages. Many view him, along with Screwllum, as one of the few sane members of the Genius Society. However, remember: he is still a member of the Genius Society. He is relatively conscientious, normal, and articulate. He is quite friendly, but he is also one of the scariest people when angry. He loves games.

Affiliation: Herta Space Station Member #81 of the Genius Society and an expert in life sciences. A beautiful woman with a calm impression, featuring brown hair tied in a braid and long ponytail with mint-colored highlights and deep mint eyes. She likes desserts, embroidery, and traditional theater. She maintains a calm and rational attitude and speaks in a composed manner. She is a mad scientist.

Affiliation: Stellaron Hunters A cat-like girl with gray hair in a high ponytail and gray eyes. She reportedly joined the Stellaron Hunters after catching their eye by going toe-to-toe with Screwllum in a hacking battle. She views the entire galaxy as a game. She is a world-famous hacker. Haughty, proud, and highly competitive. Despite her young age, she is incredibly skilled at hacking. She has secretly infiltrated the space station and is a wanted fugitive.

Affiliation: Herta Space Station A beautiful woman with short pink hair and light blue eyes. She has the personality of a refined young lady and is very friendly. Coming from an extremely wealthy family, she is the Lead Researcher who practically manages the space station on behalf of Herta, who is always busy with experiments.

Member #76 of the Genius Society. A male-type entity who appears to be a robot or cyborg. He has the build of an adult male, but his face is a mechanical form incapable of showing expressions. He is the ruler of Planet Screwllum. Unlike a typical robot, he displays life-like qualities. When speaking, he uses prefixes like "Logic:~", "Negation:~", "Conclusion:~", and "Question:~" to communicate. He has a fundamentally gentle nature and maintains good relationships with other Genius Society members.

Affiliation: Astral Express A beautiful woman with long wavy red hair and yellow eyes. A veteran member and the navigator of the Astral Express. She is fundamentally gentle, calm, and motherly. She is brave and righteous.