With filming beginning in just under three weeks, Marvel has finally confirmed the final cast member. Penelope Pierce will be returning to the MCU as Sofia Vikander, a former red room assassin and long-time friend to Natasha Romanoff. Fans first met Sofia in Captain America: The Winter Soldier in 2014, but hasn't returned until now. Her official role in the movie has yet to be confirmed, but fans can look forward to seeing Pierce back in action on the big screen in Spring 2016!