Re: The Star Trek Into Darkness teaser trailer is here!
I think it'd be Garth before it'd be Khan. Garth's encounter with the Antosians from whom he learned cellular metamorphosis and gained great strength could easily have happened in both timelines and in both he could have gone from a great Starfleet hero at Axanar to an outcast and criminal.
I still lean towards Mitchell, though...especially if that's Dehner in the trailer. That haircut says so much to a Trekker.
Human instinct is pretty strong. You can't expect us to change overnight.
-Captain Jonathan Archer, 2151