Back in October, when the pop culture juggernaut known as New York Comic Con took over the entire six blocks of the Jacob K. Javits Convention Center on Manhattan's West Side, attendees were greeted by the oversized face of the Welsh actor Matt Ryan as they entered the building on the North side. Ryan's glowering visage was part of a huge banner hung front and center for NYCC 2014, heralding the October 24th premiere of the highly anticipated NBC show, " Constantine ", based on the long running DC comic book series "Hellblazer".