Caped crusaders aren't always the valiant, bad-guy-busting greats that have been consistently showcased since the superhero genre made an appearance. In the past decade or so, some superheroes have lost their PG factor and have turned into TV-MA gold, delivering bloody trauma and insane amounts of violence. While the superhero genre is rife with awesome shows perfect for kids to enjoy, there are also quite a few series that are absolutely too disturbing and should never be seen by children.