The extended trailer for “The Avengers: Age of Ultron” dropped today, and with it audiences got their first good look at Marvel’s mystery girl. Behold, actress Kim Soo-hyun — also known as Claudia Kim — in all her mildly terrified glory.

Image Credit: Marvel Entertainment

But who is she in-universe? Marvel has been characteristically tight-lipped as to what role Kim will be portraying. Other than a tweet from the actress nearly a year ago, there is precious little information to go on. Rumors say Kim has a “substantial supporting role” but who wants to settle for something so boilerplate? Boring!

With a little theorizing on who would be the most useful and/or likely to show up in an Ultron storyline, HitFix collected a few potential candidates for Kim’s Marvel debut. Warning: Potential spoilers lie ahead.

Mom. Wife. Geek. Gamer. Feminist. Writer. Sarcastic. Succinct. Donna has been writing snark for the Internet in one form or another for almost a decade. She has a lot of opinions, mostly on science-fiction, fantasy, feminism, and Sailor Moon. Follow her on Twitter (@MildlyAmused) for more of all these things.