Xavier's mother is Canadian, and is of three quarters French-Canadian and one quarter Irish descent (the surname "Dolan" is Irish). Xavier's father is Egyptian, from Cairo.

[on directing oneself in a film] I don't want to be brash, but you just do it. It's not complicated. I love it. I sit down on the chair to do the scene, and then I get up, ask for the playback. And if it's bad it's bad. If it's good it's good. I won't hesitate a second if it's bad.