12. Gyp Rosetti, 'Boardwalk Empire'
"Nothing's personal? What the fuck is life if it's not personal?" That's the beauty of the berserk Prohibition Era gangster who stole the third season of Boardwalk Empire — and, nearly, said empire itself — out from under Nucky Thompson's nose. Wish him good luck, tell him it's nothing personal, and he'll take these harmless conversational niceties as insults worth murdering you for. Actor Bobby Cannavale dug into this role like a starving mafioso with a plate of pasta, and the resulting feast won him an Emmy. The sight of him walking through a shot-up whorehouse, blood-soaked and bare-assed naked with an autoerotic-asphyxiation belt still dangling from his neck, is one for the ages; the dude was an animal, and at that moment, it showed.