Joe Masseria
In the show, the organization is an official rival of Dr. Valentin Narcisse (based on Casper Holstein), Charlie Luciano, Meyer Lansky, Benjamin Siegel, George Remus, the D'Alessio Brothers, and an unofficial rival of Arnold Rothstein and Joe Masseria. The organization is allied with Al Capone, Johnny Torrio, Ralph Capone, Frank Capone, Arnold Rothstein, and Salvatore Maranzano.