He is hard to listen to and hurts the ears. Your adjective is more precise than what you may have intended. He has quite a colorful record-
http://www.huffingtonpost.com/2008/04/18/richard-quest-cnn-reporte_n_97466.html
CNN personality Richard Quest was busted in Central Park early yesterday with some drugs in his pocket, a rope around his neck that was tied to his genitals, and a sex toy in his boot, law-enforcement sources said.[...]
He's English. That's pretty normal.