Christopher David Johnson is a British actor, voice actor and television presenter. He began presenting on the CBBC Channel in January 2010, and continued until April 2016. His first television appearance was for BBC Three, introducing Family Guy. Chris also makes content on YouTube under the user name OfficialCDJ.He voiced Dennis the Menace for the 2013 series Dennis the Menace and Gnasher. Johnson also has a podcast which he co-hosts called BigDamnCast.