Sergeant Sergei (Rex) Govorkov or 30th is a fictional character in the fiction series and movies by Victor Dotsenko.
- (It will be) "Very troublesome" (rus. Хлопотно это) - usually, if someone threatening to kill him.
- "Keep on working, Cappie (Captain), keep on working" (rus. Работаем, Капитан, работаем) - to his sidekick Captain Voronov, every time something takes his attention away.