Tommasino was an old friend of Vito's in his hometown of Corleone. He agrees to have Vito import Olive oil to him. In return, Tommasino helped Vito set up a meeting with Don Ciccio, the man who had his family killed so that he could avenge their deaths.
Born and raised in the Sicilian village of Corleone, Tommasino first got in touch with Vito when the latter was expanding operations of his Genco Pura Olive Oil Company. The two cut a deal in which Vito would distribute Tommasino's olive oil.
In the novel, Tessio helps broker the summit shortly after Vito's death. In the film, Tessio approaches Michael at Vito's funeral about setting up the peace summit, Michael already anticipated the plot via his father's warning: whoever approached Michael about the peace summit would be the family traitor.
Clemenza wasn't supposed to be intelligent like Tessio and so Tom guessed he wouldn't have thought things through and realized that Vito would have taught Michael how to spot traitors. He thought that such a betrayal would more likely have been made by Clemenza than Tessio.
By The Godfather Part II, Kay has decided that Michael is a cold, distant, inattentive husband and father, but only after an attempt is made on his life in the family home does she resolve to rebel against him. At first, Kay's rebellion is silent and private: she aborts the child she is carrying.
Victor Rizzi was the son of Connie Corleone and Carlo Rizzi. He was at Anthony Corleone's first communion and seen with his brother Michael Rizzi coming in the door at Carmela Corleone's funeral. Victor was arrested in Reno for theft some time shortly before Anthony's first communion.
We know from a scene in the first film what Vito's hopes for Michael were: He wanted his youngest and brightest son to become someone who pulls the strings in American public life as a powerful politician—a senator or governor.
During the meeting, Sonny, the family underboss, expresses interest in the deal, but Vito refuses the offer as he finds narcotics too much of a "dirty business". Barzini then approves Sollozzo's plan to have Vito murdered in the hopes that Sonny, as his father's successor, will accept the deal.
When Sonny brings Tom home and demands he be taken in, the Corleone family welcome him as a family member. Hagen considers Vito his true father, although Vito never formally adopts him, believing it would be disrespectful to Hagen's deceased parents.
and Vito's oldest son and heir apparent Sonny ordered Salvatore Tessio to kill Bruno. According to Tessio, the hit took place at 4:00 in the morning at Bruno's own nightclub.
Born near Trapani, Sicily, Peter Clemenza is one of Don Vito Corleone's caporegimes and oldest friends, as well as the godfather of his eldest son, Sonny.
Luca Brasi is Don Vito Corleone's personal enforcer and the only man Vito himself fears. While slow-witted and brutish, Brasi is fiercely loyal with a reputation as a savage and remorseless killer.
Vito enters Fanucci's building and shoots him in the chest, face and mouth, killing him. Vito then takes over the neighborhood, treating it with far greater respect than Fanucci did.
Connie was enraged upon learning what Michael had done (though she likely didn't know of Carlo's involvement in Sonny's death), and resented him for some years afterward.
In New York, he befriended Sonny Corleone and eventually proposed to Connie. Carlo is well aware of the Corleone Family's wealth, and he marries Connie in part because he hopes to get a piece of their wealth and power for himself.
He is also mentioned many times throughout the film; the dialogue makes it clear that Michael is tormented with guilt over ordering his brother's death, and that it has alienated him from his ex-wife, Kay (Diane Keaton), and his son, Anthony (Franc D'Ambrosio), both of whom know the truth about Fredo's death.
Meanwhile, Kay decides to leave Michael and take their children with her, believing Michael will always live in a world of crime and violence. Michael asks her to reconsider, but Kay reveals she aborted their unborn son because she refused to bring another of his children into the world.
Even when they walk together and she briefly stumbles, Michael catching her can be seen as a metaphor for exercising control. Later, in The Godfather Part III, Michael has a flashback about Apollonia. While he states that he loved her, it isn't clear if that is actually an honest admission.
Having Paulie brought to the Corleone compound Sonny Corleone deduced that Gatto had sold out his father. Sonny ordered Clemenza to have Gatto killed as soon as possible, saying he did not want to see Gatto again.
Enraged, Sonny speeds towards Connie's apartment in Hell's Kitchen ahead of his bodyguards. At the Long Beach Causeway toll plaza, Barzini's men trap Sonny and shoot him to death. During a meeting with the other crime family dons to establish peace, Vito realizes that Barzini masterminded Sonny's murder.
However, Paulie didn't know that the family had several phone company employees on the payroll, one of whom alerted Sonny. When Sonny found out, he ordered Clemenza to have Paulie – "that stronz" (Italian for «turd»), as Sonny called him–killed on the spot.
