Dennis the Menace and Gnasher is a long-running comic strip in the British children's comic The Beano, published by DC Thomson, of Dundee, Scotland. The comic stars a boy named Dennis the Menace and his Abyssinian wire-haired tripe hound Gnasher. The strip first appeared in issue 452, dated 17 March 1951, and is the longest-running strip in the comic. From issue 1678 onwards (dated 14 September 1974) Dennis the Menace replaced Biffo the Bear on the front cover, and has been there ever since.