Now that Warner Bros. is finally moving forward with a DC Cinematic Universe with the newly announced Justice League film, fans have run wild with speculation over what the line-up will be and how exactly the film will be approached. Unlike Marvel, who took their time building up solo franchises, WB and DC are jumping directly into Justice League immediately after Batman vs. Superman (or whatever it ends up being called). Regardless, this announcement is exciting and has fans also asking what threat will be big enough to bring these heroes together. There is certainly no shortage of villains in the DC Universe, but the Justice League usually come together to take care of the biggest villains the world or universe have to offer. In that small roster, few of them can truly threaten the League, so Zack Snyder and his team dont have to look too long for which enemy or enemies will face off against these famous heroes. So with that in mind, here are ten villains who could potentially be the perfect foil for the Justice Leagues cinematic introduction.