Sergey Mikhailovich Koltakov (; December 10, 1955 – September 7, 2020) was a Russian actor. He was born in Barnaul, Altai Krai, Soviet Union. He was best known for his roles as Sergei in "Mirror for a Hero" (1987), Hank in "New Adventures of a Yankee in King Arthur's Court" (1988) and as Konstatin in "The Life of Klim Samgin" (1988).