Oleg was a former KGB Spetsnav and Afghanistan war veteran turned crime boss. He was introduced to be the main antagonist at first, but this was the plot to hide the true antagonist of the film.
Stuart St. John reveals that Malankov served in the Russian army when they invaded Afghanistan.
At the beginning of the film, he is seen talking to a man whom he had kidnapped. He forces the man to open the safe, only to find it empty. After speaking to his secret employer regarding a debt, he shoots his hostage dead.
He is not seen again until the climax, where he is relaxing on a beach. Malankov arranges to meet Stuart downtown, but instead proceeds to flirt with two women in the pool. When Bryan enters the building, Malankov engages him in a brawl that culminates with Bryan wounding him. Malankov reveals that the whole thing was a setup, and that Stuart had played them against one another, saying that we were fucked by the same man. He then dies. Stuart is later arrested.