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Villains Wiki
Villains Wiki
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Fuck off, fatso! This is our heist! If you wanna get out of here in one piece, you better hand over everything you got.
~ Brian O'Neill demanding that Vito and Joe give them everything they have so that his gang can let them leave.
I know you! You're that fucking guinea who was with Barbaro in the jewelry store! Now I'm in this fucking hell hole 'cause of you! (Vito Scaletta: You got locked up 'cause you're a stupid, crazy fuck!) You know fellas, me Ma was right. There is a God! And He sent you here, you guinea bastard, so that I could pay you back! *punches Vito* (Leo Galante: This looks interesting. Wanna make a small bet?)
~ Brian O'Neill recognizing Vito being present with Joe at the jewelry store before getting arrested and taken prison.

Brian O'Neill is a supporting antagonist in the videogame Mafia II. He is the leader of the Irish-American gang, also known as the Micks. O'Neill is the main antagonist of Chapter 4, Murphy's Law and Chapter 6, Time Well Spent.

He was voiced by Liam O'Brien, who also played Zazz and Infinite from Sonic series.

Mafia II

He has a particular disliking of Joe Barbaro as evident during a jewelry store robbery in which Vito and Joe, under Henry Tomasino's orders robbed a jewelry store in Empire Bay only to be interrupted by Brian and some of his gang, who were intent on robbing the store themselves. When the police arrived at the Jewelry store, Vito and Joe escaped while Brian got framed for the robbery and was arrested. Later on, when he got arrested for illegal distribution of gas stamps, Vito ended up in the same prison as Brian O'Neill, but almost got beaten up after getting to a brawl with him. It turns out Brian was scheduled to have a fight with Pepe Costa, a Vinci Soldato imprisoned along with Frank Vinci's consigliere Leo Galante, however Brian ordered several of his Irish friends to assault Pepe, so Leo ordered Vito to deal with Brian. Brian ended up being killed by Vito after a rough fight in the prison gym.

6 years after his death, his cousin Mickey Desmond attempts to kill Vito, only to end up being killed himself.


               Mafialogo.png Villains

Tommy Angelo | Ennio Salieri | Sam | Paulie | Don Morello | Sergio Morello Jr. | Louie | Vito Scaletta | Joe Barbaro

Mafia II
Vito Scaletta | Joe Barbaro | Leo Galante | Henry Tomasino | Carlo Falcone | Brian O'Neill | Derek Pappalardo | Frank Vinci | Alberto Clemente | Eddie Scarpa | Luca Gurino | Steve Coyne | Sidney Pen | Mickey Desmond | Zhe Yun Wong

Mafia II: Joe’s Adventures
Joe Barbaro | Rocco

Mafia II: The Betrayal of Jimmy and Mafia II: Jimmy's Vendetta
Jimmy | Elroy Tussle | Eddie Fu | Sal Gravina | Judge Hillwood

Mafia III
Lincoln Clay | John Donovan | Cassandra | Thomas Burke | Vito Scaletta | Joe Barbaro | Leo Galante | Marcano Crime Family | Sal Marcano | Giorgi Marcano | Uncle Lou | Tommy Marcano | Olivia Marcano | Roman Barbieri | Tony Derazio | Michael Grecco | Frank Pagani | Nino Santangelo | Enzo Conti | Ritchie Doucet | Remy Duvall | Cornelius Holden | Walter Jacobs | Baka

Mafia III: Faster, Baby!
Lincoln Clay | Walter Beaumont

Mafia III: Stones Unturned
Lincoln Clay | John Donovan | Connor Aldridge

Mafia III: Sign of the Times
Lincoln Clay | Bonnie Harless

Mafia: Definitive Edition
Tommy Angelo | Ennio Salieri | Sam Trapani | Paulie Lombardo | Don Morello | Sergio Morello Jr. | Lou | Dino | Vito Scaletta | Joe Barbaro