- Don Vittorio DiMaggio - Boss
- (Fit) Fat Tony D'Amico - Don
- Unnamed Consigliere - Consigliere
- Lefty - Caporegime
- Righty - Caporegime
- Johnny Tightlips - Caporegime
- Joe The Rogue - Soldier
- Legs - Soldier/Bodyguard
- Louie - Soldier/Bodyguard
- Frankie the Squealer - Soldier
- Jimmy the Snitch - Soldier
- Michael D'Amico - Soldier
- The Hat - Soldier
- Jimmy - Soldier/Hitman
- Joey - Soldier
- Joey the Arsonist
- Dan Gillick
- Snake Jailbird - Seen on chart
- Marion Anthony "Fat Tony" D'Amico (deceased) - Don
- Bart Simpson (temporary) - Soldier
- Homer Simpson (temporary) - Soldier
- Nicky Bluepants Altosaxophony (informant, actually Homer Simpson) - Soldier
- Dante Calabresi (murder) - Dissident caporegime
- Dante Calabresi jr. (murder) - Dissident soldier
- Primo (murder) - Dissident soldier
- Johnny "Two Times" (temporary) - Soldier
- The Springfield mafia conducts its business and socializes in "the Legitimate Businessman's Social Club."
- Gambling is possibly the gang's most profitable venture.
- The gang has strong control over illegal fireworks sales and rats milk production.
- The gang helped out Marge Simpson's pretzel business by attacking her competitors.
- The mafia is also responsible for tobacco, drug, and alcohol trafficking. When Springfield reenacts Prohibition, he pays off police officers to smuggle the booze into the town.
- The gang offers protection to Krusty Burger from competitor restaurants such as McDonalds and Burger King.
- The mafia also built a wheelchair navigation ramp system for Springfield Elementary School which ended up collapsing, due to having been made out of breadsticks, before it could see official use (It was originally developed to help Bart get around the school when he was confined to a wheelchair, but that fell through after he made an unexpectedly quick recovery), which also forced Springfield Elementary to close permanently.
- They were gluing cotton balls on ferrets and selling them to pet shops, as toy poodles, in Poppa's Got a Brand New Badge -- until they were arrested by SpringShield.
The mafia often punishes people for things that are either an insult to them or if they don't pay back their debts. For instance, when Homer ended up borrowing money from Fat Tony and losing it in a football game, Fat Tony "hammered down" a payment plan by having Louie hammer Homer's hand (using two hammers if he mentioned Professor Pigskin).
Springfield Mafia FamiliesEdit
- Di Maggio/D'Amico Crime Family.
- Castellaneta crime family. (defunct)
- Guamo Crime family. (defunct)
- Travolta Crime family. (defunct)
- LaSordis Crime family. (defunct)
- Boyardee Crime family. (defunct)
- It was parodied by the Corleone Crime Family from The Godfather Series