When Greg Weisman and Brandon Vietti pitched the idea of an animated series about a group of superhero sidekicks, you could practically feel fan boys and girls around the world give them the collective side eye. They needn’t have worried as Weisman was a seasoned pro; he created the 90′s cartoon classic “Gargoyles” as well as writing for “Kim Possible” and “Spectacular Spider Man.” Two years later, Weisman is having the last laugh as “Young Justice” has quickly become the hottest property on Cartoon Network.