Gnasher

Gnasher is a main character of Dennis the Menace and Gnasher. He is Dennis' pet dog, an Abyssinian Wire-Haired Tripe Hound.

Appearance
Gnasher has scruffy black fur, black eyes, and sharp teeth.

Personality
He is Dennis' pet, best friend and sidekick who often helps him do his menacing whom Dennis is never seen without (except when he's at school because of strict policy forbidding dogs from entering school) proving the duo to be inseparable.

History
Gnasher first appeared in a Dennis the Menace story, dated 31 August 1968: Dennis' dad tells him that all dogs look like their owners, but Dennis doesn't believe him and runs off. However, upon seeing some people with lookalike dogs, he changes his mind. Then he sees a hairy dog who looks as menacing as him and they enter the dog show, causing mischief rather than winning.

Gnasher proved to be popular enough, that he has been a supporting cover star for Dennis since 1974.

Trivia

 * The original Gnasher looked very different, as he resembled a furball with paws.
 * Instead of barking, he makes the sound "Gnash".