I think that your character's background is far more compelling now. Holt has motive and there is a driving force behind what he does. At this point, reviewing all the characters and their basic outlines, I think that we have something to work with. One person in school pursuing their interest, one person looking to find their dad and one person looking for more of the element that can give their people solid form. All these things coming together could be interesting.
*Makes a happy jig* We all have motives!