Few actors have done more to shape the modern cinematic gangster than Robert De Niro. Across decades of mob dramas, he's played men who command respect through intimidation, calculation, and a religious devotion to the rules of their world. From The Godfather to The Irishman, De Niro's proven himself one of the most popular leading men to handle some of the worst gangsters on the silver screen, including Al Capone, Vito Corleone, Frank Costello, David “Noodles” Aaronson, James Burke, and plenty more.