Xavier is a hardheaded, good natured, college student who's trying hard to be something more than what people expect of him. He is compassionate towards most people, usually adding a bit of wit and flair to whatever he says to make himself laugh or entertained. Xavier has a fighter's attitude towards getting what he wants and succeeding at most things--at least, things that don't involve interacting with other people--with those outside of his friend group, Xavier is not one to get involved, he has a lot of trouble speaking to them and making them understand what he's saying or his humor; so he generally avoids these situations if possible. He is passionate about his secret projects and his private works, and tries his best to find that passion in everything he does but...doesn't always succeed. Xavier is the kind of person to fight tooth and nail for those he cares about, even if he does tell a few jokes at their expense sometimes he loves those who have chosen to accept and support him. That's all he ever really wanted.

VOICE 

Xavier could probably be interpreted in any way. I don't have a specific thought for him, other than it being in a medium range, not too high or too low, but somewhere sitting in the middle. Again, if you think you can nail him and you have a different interpretation from what's here then give it a shot!