Mockingbird, alias Barbara "Bobbi" Morse, was researching a way to recreate the Super Soldier Serum when she was recruited by S.H.I.E.L.D.. There, she trained to match her athleticism to her intelligence. Despite a lack of powers, her natural combat prowess has earned her a place on the Avenger's team.
Mockingbird was once married to fellow Avenger, Hawkeye.
Earth's Mightiest[]
Mockingbird defeated Firestar in the opening round, but tied with Bucky Barnes in the second, moving them both into the Last Chance Battle Royal, where they were defeated by Daken.