However, I will tell you that this leading character is a male, and he is not necessarily pictured above. (He might be, he might not be.) And he is one of the original cast.
And you thought Hayden's same-sex kiss was surprising, eh?
Clearly the producers are pulling out all the stops this season in an effort to ramp up storylines and pull out a big watercooler-worthy surprise.
Although he isn't pictured, it seems possible that either Zachary Quinto's Sylar or Adrian Pasdar's Nathan Petrelli (even though he's technically dead...) could either meet their fate, due to the bizarre circumstances that are currently playing out this season.
We'll be sure to keep you posted on any and all Heroes news as soon as it comes in.