Marvel Studios’ 2021 feature Black Widow worked as a prequel for Scarlett Johansson’s beloved Avengers character (arriving on the MCU timeline after Natasha died in Avengers: Endgame), but also introduced a number of new characters who are going to be important moving forward. This includes Natasha’s sister Yelena Belova (Florence Pugh), who basically stole the movie with her funny lines. But Yelena will be joined on screen in Thunderbolts by her MCU father figure Alexi, aka Red Guardian, played by the wonderful David Harbour.
