We don't have a biography for полковник Сергей Иванович Ковалёв yet. Hang in there, or go ahead and contribute one.
Катя и Блэк Main cast, played by Владимир Юматов Episode 1x01: Серия 1 (May 11, 2020) Episode 1x04: Серия 4 (May 14, 2020) Episode 1x05: Серия 5 (May 18, 2020)