Mikhail Faustin (Russian: Михаил Фаустин) is a major figure in Liberty City's Bratva and the owner of the cabaret club Perestroika. He is considered one of the richest residents of Broker, with a large house in the suburb of Beachgate and a "Turismo" sports car (based on the Ferrari 360 Modena). He has a wife, Ilyena, and a daughter, Anna, who dates a member of the biker gang "The Lost", much to his displeasure. He is first introduced when one of his henchmen abducts Niko and Roman for killing Vlad Glebov and interrogates him for his motive. However, Mikhail's reaction when he discovers what is going on in his basement reveals that he had not authorised it. In his rage, he kills his henchman and shoots Roman in the stomach for screaming too loudly. Although he was far from pleased that Niko killed Vlad, he allows him to walk free as long as he works for him, as he personally believed that Vlad was an idiot himself. Mikhail specifically says "The only reason I keep him around is because I fuck his sister", which also reveals he cheats on his wife. Due to alcohol and drug abuse, Mikhail goes through angry mood swings, which causes him to order hits on people for very minor things. He is also quick to physically and mentally abuse his wife. This upsets his partner and old friend, Dimitri, who realizes that the numerous deaths are bad for business and attracts unwanted attention from the law. Things boil over when Mikhail, on a whim, orders Niko to kill Lenny Petrović, the son of another major Bratva boss, Kenny Petrović, as he suspects Lenny was a snitch. As Dimitri tries to smooth things over with Petrovic, Faustin has Niko blow up a garage in Bohan with a truck fulled with explosives, simply because the owner, an associate of Kenny Petrovic, did not pay him. Dimitri says about Mikhail that he was a good man, he had his temper but he was just and that things "got to him". His wife also states that when they got married he was a nice man and that he made her happy but something changed on him.
Dimitri sets up Niko to assassinate Mikhail, under the promise of protection from Kenny Petrović to prove that the death should be blamed on Mikhail and that Niko was just a hired gun. Deciding there is no choice, Niko confronts Faustin in Perestroikia where he gets into a gunfight with Faustin and his bodyguards. Chasing the crime lord to the top of the club, Niko corners Faustin and aims a gun at him. Enraged and accepting his fate, Faustin begins to ramble at Niko. He tells him that neither he or Dimitri will survive in America without him, and that the greed of Liberty City takes over everyone. Niko executes Faustin, but not before he is warned by Faustin that Dimitri will betray him. When Niko goes to collect the money for the hit, Dimitri tries to sell Niko to his former boss from his Mediterranean human trafficking days, Bulgarin, who believes Niko owes him money after his ship crashed. Faustin was shot at his nightclub. Faustin was revealed to be the main antagonist of the game, but after his death, Dimitri became the main antagonist.
Mikhail Faustin is voiced by Karel Roden.