Sergei Parashin

Sergei Parashin (also spelled Serhiy Parashin) served as Deputy Director of the Chernobyl Nuclear Power Plant (NPP) during the 1986 disaster. He was on duty the night of the Reactor 4 explosion, working as senior party secretary for operations, and played a key role in the initial crisis response, clashing with plant director Viktor Bryukhanov over early damage assessments while recognizing the disaster's severity amid bureaucratic delays.