7. Al Capone
Whenever I watch this scene, where a young Scarface sings "My Buddy" to his deaf son, I have to force myself to remember that the man strumming the ukulele is one of the most notorious criminals in history. And that's what makes Boardwalk's version of Al Capone such a fascinating character – his love for his family is just as strong as his disdain for his enemies. Al thinks nothing of shooting a random police officer minding his business, reading about the Leopold and Loeb case, merely because his brother, Frank Capone, died at the hands of the law. He can be a pragmatic gangster, however. When Al and his men arrived in Atlantic City to assist Nucky in the fight against Gyp Rosetti in Season Three, he announced: "We need a bath, some chow, then you and me sit down, and we talk about who dies."