- Yelena Belova (First appearance)
- Taskmaster (First appearance)
- Red Guardian (Alexei Shostakov) (First appearance)
- Rick Mason (First appearance)
- Melina Vostokoff (First appearance)
- Thaddeus Ross
- Red Room
Races and Species:
Following the events of Captain America: Civil War, Natasha Romanoff finds herself alone and forced to confront a dangerous conspiracy with ties to her past. Pursued by a force that will stop at nothing to bring her down, Romanoff must deal with her history as a spy and the broken relationships left in her wake long before she became an Avenger.
- Scarlett Johansson as Black Widow / Natasha Romanoff
- Ever Anderson portrays a younger Natasha
- Florence Pugh as Yelena Belova
- David Harbour as The Red Guardian / Alexei Shostakov
- O-T Fagbenle as Mason
- Rachel Weisz as Melina Vostokoff
- William Hurt as Thaddeus Ross
The Taskmaster will appear as the film's villain. Ray Winstone will portray General Dreykov, who was previously mentioned in Marvel's The Avengers. Olivier Richters has been cast in an undisclosed role.
- Originally slated to be released on May 1, 2020 in the US, the release was pulled on March 17, 2020, due to concerns of the COVID-19 pandemic. On April 3, 2020, it was announced that the release date for this film had been pushed to November 6, 2020. In September 2020, the film was pushed back again to May 7, 2021.
- Black Widow is the movie that will launch the 4th phase of the Marvel Cinematic Universe.