Vyacheslav Mikhailovich Khlebnikov (Colonel Khlebnikov) - Protagonist from the Metro Exodus DLC: The Two Colonels.
Government Bunker under Mount Yamantau "Kovcheg" - One of the plot locations of the game Metro: Exodus, located in the Ural, under Mount Malaya Yamant
Artyom Sukhoi (formerly: Cherny) - Protagonist of all games from the Metro series and part of the books in this universe.
Jack Carver - Protagonist of the video game Far Cry 1 (2004).
Colonel Melnik (rus: Святослав Константинович Мельников) - One of the plot characters in the Metro series of books and games.