We know that a decision regarding the casting of Cap himself will be coming in the next few weeks. But what of his nemesis, Red Skull? Cap will be clashing with this Nazi supervillain in the middle of WWII. But who should don the mask and play one of the greatest and most terrible villains in the Marvel Universe? In this Casting Call feature, we name five candidates for the job. Each of these actors have distinguished themselves as cinematic villains in the past, and we'd say they have the talent to tackle the Marvel Universe next.