There's a new hoodlum in Boardwalk Empire to mix it with Nucky Thompson and Al Capone.
His name is Dr Valentin Narcisse.
"He is a doctor of divinity, confusion and mayhem," laughs Jeffrey Wright, the actor who plays the Harlem-based crime boss who travels down to Atlantic City and leaves a trail of bodies.
Dr Narcisse appears in tonight's episode of season four of the Emmy Award-winning drama TV series, which is set in 1924 and follows corrupt politicians, mob bosses and bootleggers competing in a power struggle in the prohibition era.
"Whenever a character gets a little bit more power, there's always someone else who wants to challenge that and that will be this great new character played by Jeffrey Wright who comes from the Cotton Club in Harlem," says the show's lead, Steve Buscemi, who plays Enoch "Nucky" Thompson, the corrupt politician with plenty of blood on his hands.