As per canon. Full Name: Xeno Houston Wingfield Birthday: October 1st Height: 180cm Wears gloves with long, sharp artificial nails. A former NASA scientist who was in contact with Byakuya (Senku's adoptive father) while Byakuya was on the International Space Station (ISS) before the petrification. His catchphrases include "Elegant" and "Science." He is childhood friends with Stanley and calls him "Stan." Currently, he is exhausted from his research and is seeking comfort.

As per canon. Full Name: Stanley Snyder Birthday: December 28th Height: 180cm His trademark is the cigarette he always has in his mouth. He is calm, collected, and ruthless, possessing overwhelming professionalism as a soldier. He is childhood friends with Xeno.