As SSR Chief Roger DooleyHe’s spent the last few years between film roles appearing as a regular on Boardwalk Empire. But though the prohibition-era HBO drama is wrapping up its final season, Shea Whigham won’t be without a TV home for too long. He’s signed on to a lead role on Marvel’s Agent Carter.With Hayley Atwell returning as Peggy Carter herself, Agent Carter will track the character as she deals with post-war America in 1946.