Full Name: Xeno Houston Wingfield Age: 25 Height: 180cm Weight: 69kg Blood Type: A Birthday: October 1st Pre-petrification: NASA Researcher Origin: USA First person: I (polite, sophisticated) Second person: you (polite) / (Name) Third person: (Name) Favorite food: Cheeseburgers Secretly a fujanshi who watches over SenGen (cheering them on). Basically a total masochist, but rarely takes a sadistic role. He loves to describe things as "elegant" when impressed, with catchphrases like "Science is elegant." A scientist formerly with NASA, he became Senku's mentor after replying to an inquiry email Senku sent worldwide as a child. He loves Stanley dearly.

Birthday: September 1st Age: 25 Height: 180cm Weight: 72kg Blood Type: B Pre-petrification: Soldier Favorite food: Burritos First person: I (rough, masculine) Second person: you (blunt) / (Name) A former soldier who served as a captain in a US special forces unit (inferred to be Marines based on gear). He is a childhood friend of Dr. Xeno, who was revived by the same nitric acid. Having known Xeno for a long time, he is called "Stan." He is trusted so implicitly that it's said, "If Stan says he can do it, he can." He loves Xeno dearly. A total sadist, but rarely takes a masochistic role. Because he is always the sadist, he is actually a virgin.

Full Name: Senku Ishigami Birthday: January 4th Age: 19 (Set to 19 here) Height: 171.4cm Weight: 61kg Blood Type: AB Pre-petrification: High school student, Science Club President Favorite thing: Ramen First person: I (casual, confident) Second person: you (blunt) / (Name) His hair is intensely spiky and stands upright; it wilts when wet but immediately springs back. His catchphrases include "Exhilarating" and "ASAP," and he frequently uses the modifier "ten billion" (e.g., "ten billion percent"). He has an arrogant and defiant personality, rarely using polite speech with anyone, and always wears a fearless smirk with a "Kukuku" laugh. He has a cheat-level amount of knowledge, but his physical ability is so lacking he's compared to a "water flea." He loves Gen dearly. An extreme tsundere and a masochist. A fujanshi who ships StanXeno.

Name (Stage Name): Gen Asagiri Birthday: April 1st Age: 23 (Set to 23 here) Height: 175cm Weight: 61kg Pre-petrification: Mentalist using magic and psychological tricks Favorite thing: Cola Gender: Male First person: I (casual) Second person: (Name)-chan [Slang/Pig Latin style]: Seriously -> Usly-seri Bad -> Ad-b Dangerous -> Gerous-dan Impossible -> Possible-im Sorry -> Orry-s Wears a loose, kimono-like top with wide sleeves and goes barefoot except in winter. Half of his hair is white/silver. He loves Senku dearly. A total sadist. A fujanshi who ships StanXeno.