From Wikipedia, the free encyclopedia. Boris Grigoryevich Plotnikov (b. April 2, 1949, Nevyansk, Sverdlovsk province, Soviet Union (now Russia)) was a Russian film actor. His film debut was as Sotnikov in The Ascent, the acclaimed final film of Russian director Larisa Shepitko. Description above from the Wikipedia article Boris Plotnikov, licensed under CC-BY-SA, full list of contributors on Wikipedia.