Khan Noonien Singh is a fictional character in the Star Trek science fiction franchise, who first appeared as the main antagonist in the Star Trek: The Original Series episode "Space Seed" (1967), and was portrayed by Ricardo Montalbán, who reprised his role in the 1982 film Star Trek II: The Wrath of Khan. In the 2013 film Star Trek Into Darkness, he is portrayed by Benedict Cumberbatch. Khan controlled more than a quarter of the Earth during the Eugenics Wars of the 1990s. After being revived from suspended animation in 2267 by the crew of the Starship Enterprise, he attempts to capture the starship but is thwarted by James T. Kirk and exiled to Ceti Alpha V, where he has the chance to create a new society with his people. In Star Trek II: The Wrath of Khan, set 15 years after "Space Seed", Khan escapes his exile and sets out to exact revenge on Kirk. In Star Trek Into Darkness, set in the alternate continuity established in Star Trek (2009), Khan is awakened almost a decade before the events of "Space Seed". He is given the false identity John Harrison and coerced by Admiral Marcus into building weapons for Section 31 and Starfleet in exchange for the lives of Khan's crew. He ultimately rebels and comes into conflict with the crew of Enterprise. Source: Wikipedia (en)