The Cobra Clan are a team of comic book supervillains in the Belch Dimension Comics universe. They are the primary adversaries of the Treehouse Warriors . The team is comprised chiefly of mutants and is led by the villianous Hiss Hole. Ironically he is the only member of the team to not have been born a mutant, having been turned into his present reptillian form through a laboratory mishap. Following his mutation, a period of despair and self-exile, and some in-depth study of the black arts, the former Dr. James Allen put together a squad of fellow rejects who had been shunned by society for their physical appearances and shortcomings. All of them had criminal records, ranging from juvenile offenses to homicide to--in the case of Prof. Sydney Fruitcake--being drummed from reputable scien