Dennis the Menace, "The World's Wildest Boy", is the most famous character in The Beano, debuting in the comic in his own strip in 1951. With his trademark spiky hair and red and black jumper, Dennis is a badly behaved schoolboy, and treats others around him badly. Dennis is often seen with his pet dog, an Abyssinian Wire-Haired Tripe Hound named Gnasher, who made his debut in 1968. Dennis's family includes his father, his mother, his little sister named Bea, and his grandmother. Other than Gnasher, Dennis has two main friends named Curly and Pie Face, who are collectively called "The Menaces"; as well as band called Dennis and the Dinmakers. Dennis's arch-rival is Walter, a boy who while originally portrayed as a "softy" who Dennis would pick on, Walter would eventually be portrayed as a snobby rich boy who is "boring," and does not like having fun. As of 2017, Dennis's surname is 'Menace', he is cousins with his female counterpart Minnie the Minx, and Dennis has two female friends named Rubi and JJ, replacing Curly's role in Dennis's core friend group. Dennis the Menace is the name of three Menaces; as of 2015, it has been confirmed that the 2012 redesign of Dennis's Dad was the Dennis from the 1980s. In 2021, it was confirmed that the Dennis from 1951 is the current grandfather of Dennis. Because of this, the 1951 Dennis is referred to as Grandad Menace, the 1980s Dennis is referred to as Dennis Menace Sr., and the current Dennis is referred to as Dennis Menace Jr..