Who is Iron Beta? Who is Emily Stark? Emily Stark -Iron Beta- is the youngest and last Stark. Her brother is the well known Iron Man, her father is the well known man 'back in the day', Howard Stark. When Director Fury gets shot, it's up to Emily and her bestfriend, Captain America to find out what happened. What happens with the Winter Soldier is a part of history along side of Steve Rogers? What happens when Bucky and Emily meet?