Xavier character is a boy with a slim build, and average height. He has black hair and dark brown eyes. He has already started puberty with some hairs popping up on his legs and a tiny, little moustache. He also has smooth tan skin.

His mentality is one of confidance but not arrogance. He knows is worth and value and understands that he is not the center of attention and doesn't have to be. Xavier is quite humble and respectful towards everyone. He also has a big passion for Quidditch and loves flying on broomsticks and feeling the wind blowing in his face. He likes helping people and making friends.

Xavier is a boy from a pure-blood family, but one that doesn't believe that pure-bloods are superior. His family is quite wealthy, they are high middle class, but they don't consider themselves as rich, just fortunate. His father works as an Auror and his mother works in the Department of Magical Accidents and Catastrophes. Xavier loves spending time with his family and friends, for he feels they are people who will always stay with him even in his worst moments.

The first time Xavier did magic accidentally was when he was 8 when he told his parents he wanted to eat some pie. His parents told him that they didn't have any and they were too lazy to make some. Xavier, being the little kid that he was did not understand why he could not get some pie. He started crying and his face got really red from anger and suddenly things started flying in the air. A chair broke a lamp, a couch hit the wall and his father's papers flew everywhere. Immediately, everything fell back on the floor and this was his first instance of magic.