Birthdate: October 1, 1993
Nationality: american
Height: 180 cm
Weight: 69 kg
Blood type: A
Hair color: white
Eye color: black

Xeno is a adult man with white hair styled into a large pompadour that is slicked and spiky towards the back. He has thick eyebrows that widen at the arch and large, dark eyes with no visible irises and heavy bags underneath, making him look slightly raccoon-like. He has a small nose and small mouth with no visible lips. His most notable facial feature is his extremely prominent forehead and the huge petrification scars crossing it. The scars are in the shape of an 'X', ironically the first initial of his name. He is most often seen with a smug, confident grin on his face. Xeno retains his scars even after his second revival though instead of a huge black mark, it's now a light outline.

(Source: Dr. Stone Wiki)