Yelena Belova (Russian: Елена Белова) is the adoptive sister of Natasha Romanoff and a Red Room operative who worked for General Dreykov as a Black Widow. Following Romanoff's defection from the Red Room, Belova and other Black Widows were put through the mind controlling programming and turned into Dreykov's obedient subordinates. After being freed from the control, Belova joined forces with Romanoff, as well as their adoptive parents Alexei Shostakov and Melina Vostokoff, to bring down the Red Room once and for all. They eventually succeeded and liberated all Black Widows, with Belova directly killing Dreykov. After parting her ways with Romanoff, Belova spent two years freeing many of the remaining brainwashed Black Widows before she was killed by Thanos' Snap. Upon her resurrection in the Blip in 2023, Belova attempted to seek out Romanoff, but was informed that she had died. While visiting Romanoff's grave, Belova was given an assignment by Valentina Allegra de Fontaine, who claimed that Clint Barton was responsible for Romanoff's death and that she was to eliminate him. In December 2024, Belova came into conflict with Barton and his protégé Kate Bishop. Belova held back against hurting Bishop, and though she came close to killing Barton, Barton managed to get through to Belova and explain that Romanoff's death was of her own choice to save Belova and the world. Coming to terms with Barton and accepting Romanoff's death, Belova abandoned her mission and departed for unknown parts.