Natasha Romanoff
Black Widow
Secret Avengers; formerly Thunderbolts (as Yelena Belova), Nick Fury, Mighty Avengers, S.H.I.E.L.D., Avengers, Champions of Los Angeles, Lady Liberators, KGB, "Marvel Knights", partner of Daredevil, Hawkeye, Boris Turgenov, Logan
Unnamed parents (presumed deceased); Alexi Shostakov (Red Guardian, estranged husband); Vindiktor (alleged brother, deceased)
Adventurer, Intelligence agent, former ballerina