Xeno Houston Wingfield

Dr. Xeno Houston Wingfield (ゼノ・ヒウストン・ウィングフィールド 'Dokutā Zeno Hiusuton Wingufīrudo'), better known as Dr. Xeno, is the leader and head scientist of the American Colony. He serves as the main antagonist of the New America City arc, currently assisting the Kingdom of Science and Senku Ishigami in their quest to create a rocket that will reach the moon.

Dr. Xeno is a young adult with long, white-colored hair that has been meticulously combed into a large pompadour in the front, while it is slicked and spiked towards the back. He has thick eyebrows that flare out at the arch and large, dark eyes with no visible irises. He has a small nose and mouth with no visible lips. His most notable facial feature is his extremely prominent forehead and the massive petrification scars that run across it. The scars are shaped like an 'X', ironically the first initial of his name. He is most often seen with a smug, confident grin on his face.

He wears rather modern clothing, featuring a long black coat with a high, serrated collar and a zigzag zipper. Panels of jagged white fabric wrap over his shoulders and around his ribcage, forming an 'X' on his back. Underneath, he has a light-colored dress shirt and a patterned tie. Xeno also wears tight-fitting black pants and shiny black dress shoes. To complement, he wears wrist-length gloves with metal claws attached, similar to the clawed weapons Ibara uses.

Before petrification, he wore a very similar outfit but the coat was less pointed, did not have the backpack accessory, and used buttons instead of zippers.

Xeno from the beginning was shown to be a Machiavellian and ambitious person who does not care about hurting or harming others in order to achieve his goals, apparently the only person he cares about is Stanley.

Like Senku, he is extremely intelligent, but more narcissistic, intellectually arrogant and quite contemptuous of normal people whom he calls "inferior".

Later, when the vote was taken to build a round-trip rocket, he showed genuine concern for the well-being of his new comrades.

Xeno is the American equivalent of Senku:
He is a scientist like Senku.
He revived only as Senku.
He is responsible for his side's scientific weapons.
He uses the catchphrase "Elegant", which is like Senku's catchphrase "ten billion percent".
They were depetrified the same day.
There are key differences between the scientific pair.
Xeno is much older than Senku.
Xeno has never figured out how to de-petrify on his own.
Xeno spent more time building his weapons and buildings than Senku.
Xeno lacks Senku's morality and kind nature, which is best evidenced in Chapter 154 where they both give their respective orders to the group. Senku wishes to capture the enemy scientist, while Xeno wishes to eliminate the scientist in Senku's group in order to gain control of it. He also seems to look down on those he deems to be of "lesser intellect" in contrast to Senku, who (aside from playful banter) cares for his friends and values ​​each of them and their respective abilities.
Xeno respects his fellow scientists and congratulates Chrome for getting the answers right.
It is confirmed in the character notes for volume 18 that Xeno's full name is Xeno Houston Wingfield.