Protagonist and former servant who witnesses the Tsar's family murder. Sold into slavery, he is bought by mercenary Alvar. After Alvar's death, Andrei disguises himself as his master to avoid execution. He infiltrates Polish forces, protects Russian civilians, and later aids in the city's defense by crafting and firing a makeshift cannon. He ultimately joins the Russian forces, defeats the Polish commander Kybowsky in a duel, and helps secure Moscow.