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.
Marion Anthony "Fat Tony" D'Amico, voiced by Joe Mantegna, is the fictional local Mafia don and leader of The Springfield Mafia in the animated television series The Simpsons.
Louie's appearance and mannerisms are strongly evocative of the character actor Frank Sivero, who has played gangster roles in films such as Goodfellas and The Godfather Part II. It has also been established that Joseph Kennedy, father of President John Kennedy, had something to do with Legs acquiring his nickname, though this is never properly explained. Legs is an accomplished mob surgeon as referenced in "Trilogy of Error", where he sews Homer's thumb back on as a part of Lisa's science project.
In "Insane Clown Poppy", there is a shoot-out in Fat Tony's mansion and Tightlips is shot by accident. When asked where he's injured, he says " I ain't sayin' nuthin'!", and when asked what to tell the doctor he says, "Tell'em to go suck a lemon."
He was seen shooting Frankie the Squealer (see below) in Reaper Madness (he wouldn't die since Death was killed by Homer's Bowling Ball).
The German word "Schmallippe" translates to "tight lip."
Frankie the Squealer, is another member of the Mafia and associate of Fat Tony. However, he does not appear to be very useful to his colleagues in criminal activity due to his uncontrollable habit of squealing (he claims that "it makes [him] feel big"), even squealing on himself one time. On several occasions, the mob has attempted to kill him for his squealing, though they have repeatedly been unsuccessful. However, he was once seen dead on the ocean floor with his feet in a concrete block.
Frankie first appeared in episode Insane Clown Poppy where his squealing habits are introduced after he squeals on himself for squealing. He is taken to a room by Louie and Legs who tie him to a chair and beat him up. Homer witnesses how Louie and Legs beat up Frankie and tell him to "never squeal again", almost immediately, Frankie squeals again by saying "Did you know that Fat Tony's first name is Marion?", after he says that, Legs says "You just don't get it, do ya?" and proceeds to keep beating up Frankie. In the episode "Ice Cream of Margie (with the Light Blue Hair)" he was seen again, posing for Marge Simpson with Fat Tony, who is choking him, for one of Marge's ice cream stick statuettes. After posing they smile deeply at each other, Fat Tony gets in the front seat of the car and Frankie opens the trunk and gets inside.
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.
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 (Marge Simpson) has admitted to bringing them lemonade.
This crime family plays a critical role in the episode "The Mook, the Chef, the Wife and His Homer," but it has not previously played a role in The Simpsons canon, and the episode seems to end with the family's demise.