Jon St. John
From Guild Wars 2 Wiki
Jon St. John voiced the norn Knut Whitebear and others. He was a production director for US radio stations in cities including: New Orleans, Philadelphia, Phoenix, Los Angeles and San Diego. St. John was also a radio personality for many years most recently on K-Earth 101 in Los Angeles. And from that moment, he has since provided voices for numerous video game characters, and he is most famous for providing a deep, gravel voice for Duke Nukem.