Dutch Schultz was an American mobster based in New York City in the 1920s and 1930s. Schultz made his fortune in organized crime-related activities, including bootlegging and the numbers racket. Schultz's rackets were weakened by two tax evasion trials led by prosecutor Thomas Dewey, and also threatened by fellow mobster Lucky Luciano.

Arnold Rothstein, nicknamed "The Brain", was an American racketeer, crime boss, businessman, and gambler who became a kingpin of the Jewish Mob in New York City. Rothstein was widely reputed to have organized corruption in professional athletics, including conspiring to fix the 1919 World Series. He was also a mentor of future crime bosses Lucky Luciano, Meyer Lansky, Frank Costello, Bugsy Siegel, and numerous others.