Who is Jane Doe? Where did she come from? Who tattooed her entire body with specific clues that lead to people, places, and events yet to occur? These are just a few of the questions lingering on the tip of my tongue after watching the premiere of NBC’s new drama Blindspot. Jaime Alexander’s magnetic performance as Jane Doe, both physically and emotionally, keeps you transfixed to the screen. Alexander is convincing as a woman plagued with amnesia and also credible as a kick-ass operative. (She is, after all, Lady Sif of Asgard in the Thor films). Is Jane part of an elite military unit? It’s not quite clear yet but the small clues sprinkled throughout “Pilot” seem to suggest her amnesia may not be an accident.