One of the leading theories is that it’s Gary Mitchell, a crew member who turns evil after receiving god-like powers in “Where No Man Has Gone Before” an episode from the original series. It’s supported by the official synopsis, which describes the villain as “an unstoppable force of terror from within their own organization” and “a one man weapon of mass destruction.”
The trailer shows the villain wearing a Starfleet uniform along with another new crew member, played by Alice Eve. We’re also in dark about her identity, which suggests that she has some relation to the villain that would give away his identity.
We do know that Eve will play a canonical character, which looks to be Dr. Elizabeth Dehner based on her appearance. Dehner was a Starfleet psychiatrist, who received powers like Mitchell but managed to hold on to her humanity long enough to stop him.
Some fans dismiss Mitchell as the villain because he was marooned and subsequently killed in Star Trek #2, an ongoing comic that is canonical to the rebooted franchise. However, it’s not easy to kill a god. In the original series, Mitchell displayed the power to will himself dead and then back to life.
Fortunately, we won’t have to wait long to find out if it’s him. A 9 minute preview will be shown before IMAX 3D screenings of The Hobbit: An Unexpected Journey, which premieres December 14. And in January there will be a four-issue prequel mini-series, Star Trek: Countdown Darkness.