Mark Russell is a Scottish-American TV and movie actor. He is probably most famouse for his role as Det. Saperstein in TV show Kojak (105 episodes during 1973-1978, plus TV movie Kojak: The Belarus File). He also appeared in Mission: Impossible (9 episodes, 1969-1971), Mannix (4 episodes, 1969-1972), Star Trek (uncredited, 1967), Cannon with William Conrad, several uncredited appearances on The Invaders (1967-1968) and Columbo, including the 1968 pilot as well as other instalments like the Steven Spielberg directed Murder by the Book (1971), etc. He was mostly cast as police officers, secret agents and other authority figures.