Black Widow is an agent of S.H.I.E.L.D. and a member of The Avengers. She is of Russian background and is one of S.H.I.E.L.D.'s best agents.
She has been romantically linked with notable people such as Captain America, Tony Stark, Daredevil and Hawkeye.
Black Widow is a martial arts expert, weapons specialist, a world class athlete and gymnast and has extensive espionage training. Along with her stunning looks Black Widow is a force to be reckoned with.
More than one woman in the Marvel Universe has used the identity Black Widow.