Cartoon Nickelodeon: Prison Life

 is a comic book series focusing on villains from Cartoon Nickelodeon Network shows.

Main

 * Sfika the Wasp - The main antagonist of Gatopardos the Cheetah and is the primary protagonist.
 * Plankton - The main antagonist of SpongeBob SquarePants and is the secondary protagonist.
 * Brimstone - The main antagonist of Velocity: The Dark Human Slayer and tertiary protagonist.

Prison Workers

 * Warden Phantom  - The main protagonist of Danny Phantom and one of the Wardens in the prison.

Trivia

 * This is the first CNN comic to focus on villains rather than the heroes of their own shows.