I always drastically changed my look for each role. It's gotten a little tedious in real life, also, because there's no hiding.
My default position is not to be an actor. My default position is to be a follower of Jesus Christ. If that means I continue in acting, great! I'd love that. But if it means I need to change professions someday because I can't provide for my family, well, that's what I need to do.