Guest Stars John Getz as Benjamin Cahill Jim Beaver as Agent Jake Neville Misha Collins as Elliot Ness Richard Portnow as Mayor William Hale Thompson Mather Zickel as Richard Hart / Jimmy Capone Charles Rahi Chun as Priest Cameron Gharaee as Al Capone Co Starring Paul Moniz de Sa as Frank Gallucio Allison Riley as Hart's Wife Brandyn Eddy as Reporter Liviu Rain as SM Caleb Sullivan Jag Arneja as Agent Singer