Title Student, College
Age 17
Height N/a
Weight N/a
Gender Male
Status N/a
Relatives Alexander (Brother)
Ethnicity N/a
Species Human
Aliases N/a
First Appearance N/a

Xavier is mainly known as "Mr. Reliable."

You don't meet him in CLT because he's away in college (he's 17 but he skipped a grade and graduated early) but he's a old friend of Ava and Lee, also he's Xander's older brother.