Cletus Kasady first appeared as Carnage in The Amazing Spider-Man #361 (February 11, 1992)
Height: 6′ 1″(Kasady); 6’9 1/2″ (Variable, with symbiote)
Weight: 190 lbs (Kasady); 300 lbs (Variable, with symbiote)
Eyes: Green, White (Carnage)
Hair: Red, None (Carnage)
Place of birth: Brooklyn, New York
Cletus Kasady first appeared as Carnage in The Amazing Spider-Man #361 (February 11, 1992).
Carnage was created by David Michelinie and Mark Bagley and first appeared fully in Amazing Spider-Man issue #361 (1992). He had however appeared before in a minor cameo one issue before, in Amazing Spider-Man issue 360 (1992).
Perhaps the most famous storyline in which Carnage appears is the 1993 Spider-Man event Maximum Carnage. Carnage ends up escaping from an asylum and attacks the doctors and breaks out a super villain named Shriek in which the two start a romantic bond with each other. Later on, they get a whole Carnage “family” of psychotic super-villains (consisting of Demogoblin, Carrion and Doppelganger) and overtake New York in a twisted killing spree where he randomly kills hundreds if not thousands of innocent people and throws the city into mindless chaos.