Young Justice is an American animated television series created by Greg Weisman and Brandon Vietti for Cartoon Network. Despite its title, it is not an adaptation of Todd Dezago and Todd Nauck's Young Justice series of comics, but rather, an adaptation of the entire DC Universe with a focus on young superheroes.
The series follows the lives of teenaged superhero sidekicks, who are members of a fictional superhero team simply known as the Team, and their relationships with their Justice League mentors. The story is set at a time where superpowers and superheroes are a relatively recent phenomenon.
Development for the series began sometime in 2009, when Sam Register, Executive Vice President of Creative Affairs of Warner Bros. Animation (and executive producer of the show) wanted a show based on the Teen Titans and Young Justice comic series, but was not solely one or the other.
Register sought Greg Weisman immediately after he finished work on The Spectacular Spider-Man animated series, and after seeing Brandon Vietti's work on the DC Universe Animated original movie Batman: Under the Red Hood, hired him also. After taking the production name of Young Justice League, Weisman and Vietti created characters, ideas, and story arcs for at least two seasons, although Warner Bros. Animation had ordered only one season theretofore.
Although there were several characters the producers were not allowed to use in the first season, such as Wonder Girl, the list has become shorter throughout the course of the development, they were usually in charge of the decisions determining which DC Universe character would or would not be used. Geoff Johns, Chief Creative Officer of DC Entertainment, and Phil Bourassa, lead character designer for the show, also played a role in the conception and development process. Peter David, who penned the Young Justice series of comics, was approached to write several episodes. The show continued to remain in its development stages in early February 2010, when Stephanie Lemelin announced on her blog that she had been recently cast.
The first two episodes of the series, "Independence Day" and "Fireworks" premiered on Cartoon Network as a special one hour event of the series.