Roman Sergeevich Madyanov Russian Роман Сергеевич Мадянов born July 22 1962 is a Soviet and Russian actor12 Madyanovs career in cinema began as a child actor when he starred as Huckleberry Finn in Hopelessly Lost 1973 He is best known in the West for portraying the corrupt mayor Vadim in the 2014 film Leviathan