The Springfield Mafia is a fictional Italian organized crime syndicate based in Springfield in the animated television series The Simpsons. The premier family among the Springfield Mafia is the D'Amico Crime Family.It is Controlled By Vittorio DiMaggio
Boss - Anthony D'Amico
Acting bosses while Fat Tony is in hospital - Bart Simpson/Homer Simpson/Michael D'Amico ("The Mook, the Chef, the Wife and Her Homer")
Don Vittorio DiMaggio (as seen in "Homie the Clown", voiced by Hank Azaria with a stereotypical Italian accent, he may be the true don with Fat Tony being the underboss or a figurehead)
In Springfield Mafia's first appearance, Bart the Murderer, the D'Amico Family hired Bart Simpson as a bartender/errand boy in the local mob hangout, "The Legitimate Businessmen's Social Club".
This episode shows the hangout as a gambling place. This Family activity is the plot center of another episode, "Homie the Clown", where Homer becomes a licensed Krusty the Klown imitator (D'Amico family subsequently mistakes him for the genuine clown in an effort to collect on assumably massive gambling debts, later revealed to be $48).
In "Insane Clown Poppy", Krusty loses his daughter's violin to Tony in a poker game, and later sneaks into the mafioso's compound (with Homer's help) to steal it back.
Through the seasons, the family schemes will appear numerous, ranged from supplying rat's milk to the school cafeteria to dabbling in the illegal fireworks racket.
In a run-in with Homer Simpson, Homer owed money to Fat Tony and agreed to let the mob film porn movies in his home. (When Fat Tony asked why Homer assumed they would be filming gay porn, Homer explained "I thought you were the Gay Mafia?")
The gang also attempts to monopolize various legitimate business, once waging war with the local Yakuza over the pretzel business. They are also responsible for maintaining Krusty Burger by keeping McDonald's and Burger King out of Springfield. In this episode Fat Tony and his crew clashed with The Yakuza, to an unknown outcome.
The Mafia is also involved in tobacco traffic, a seen in "Bart the Murderer". When Springfield re-enacts Prohibition, naturally Fat Tony and crew pay off the cops to allow them to sneak in alcohol.
Their headquarters are located at the Legitimate Businessman's Social Club.
They are also known to frequently congregate at Luigi Risotto's Italian restaurant in Little Italy, and in the Simpson family's garden. A resident of that particular household (Marjorie Bouvier Simpson) has admitted to bringing them lemonade.