With Star Trek Into Darkness slated for release on DVD and Blu-Ray this September, it's no secret now that the villainous Khan Noonien Singh has returned to the new Star Trek universe. His presence in the new Star Trek film has been the subject of debate all over the Internet, and it seems logical that we weigh in here as well. Science fiction has a long history of classic villains, from Ming the Merciless to Darth Vader. The Star Trek universe has produced its slate of villains across the numerous television series and films, but the one that resonates supreme with audiences has been Khan, the genetically modified 20th century tyrant cryogenically frozen and marooned in space for his crimes against humanity. In the original Star Trek series and in Star Trek II: The Wrath of Khan, the character has served as a perfect foil for Captain James T. Kirk. Now that Khan has been introduced to a new generation of Star Trek fans, its time to look at what works and what doesnt with this character in Star Trek Into Darkness.