Danny Phantom is an American animated action adventure television series created by Butch Hartman for Nickelodeon. The series follows a teenage boy who, after an accident with an unpredictable portal between the human world and the "Ghost Zone", becomes a human-ghost hybrid and takes on the task of saving his town (and the world) from subsequent ghost attacks using an evolving variety of supernatural powers. He is aided in his quest by his two best friends Sam Manson and Tucker Foley, and later, his sister Jazz, who for most of the series' run are among the only people who know of his double life.[2] Throughout its run, Danny Phantom received five of people Annie Award nominations and generally positive reviews from critics and audiences, with praise primarily directed at its ensemble cast and comic book-influenced themes and storyline.[citation needed] Additionally, Danny Phantom has spawned video games, home video releases, toys, and various other merchandise.