 | Scarlett Johansson | .... | Natasha Romanoff / Black Widow |
 | Florence Pugh | .... | Yelena Belova |
 | Rachel Weisz | .... | Melina |
 | David Harbour | .... | Alexei |
 | Ray Winstone | .... | Dreykov |
 | Ever Anderson | .... | Young Natasha |
 | Violet McGraw | .... | Young Yelena |
 | O-T Fagbenle | .... | Mason |
 | William Hurt | .... | Secretary Ross |
 | Olga Kurylenko | .... | Antonia / Taskmaster |
 | Ryan Kiera Armstrong | .... | Young Antonia |
 | Liani Samuel | .... | Lerato |
 | Michelle Lee | .... | Oksana |
 | Lewis Young | .... | Scientist Morocco 1 |
 | CC Smiff | .... | Scientist Morocco 2 |
 | Nanna Blondell | .... | Ingrid |
 | Simona Zivkovska | .... | Widow |
 | Erin Jameson | .... | Widow |
 | Shaina West | .... | Widow |
 | Yolanda Lynes | .... | Widow |
 | Claudia Heinz | .... | Widow |
 | Fatou Bah | .... | Widow |
 | Jade Ma | .... | Widow |
 | Jade Xu | .... | Widow |
 | Lucy Jayne Murray | .... | Widow |
 | Lucy Cork | .... | Widow |
 | Eniko Fulop | .... | Widow |
 | Lauren Okadigbo | .... | Widow |
 | Aurelia Agel | .... | Widow |
 | Zhane Samuels | .... | Widow |
 | Shawarah Battles | .... | Widow |
 | Tabby Bond | .... | Widow |
 | Madeleine Nicholls | .... | Widow |
 | Yasmin Riley | .... | Widow |
 | Fiona Griffiths | .... | Widow |
 | Georgia Curtis | .... | Widow |
 | Svetlana Constantine | .... | Widow |
 | Ione Butler | .... | Widow |
 | Aubrey Cleland | .... | Widow |
 | Kurt Yue | .... | Ross Lieutenant |
 | Doug Robson | .... | Ohio Agent |
 | Zoltan Nagy | .... | Budapest Clerk |
 | Marcel Dorian | .... | Man in BMW |
 | Liran Nathan | .... | Mechanic |
 | Judit Varga-Szathmary | .... | Mechanic's Wife |
 | Noel Krisztian Kozak | .... | Mechanic's Child |
 | Martin Razpopov | .... | Tattoo Gulag Inmate |
 | Olivier Richters | .... | Ursa |
 | Dalibor Bajunovic | .... | Gulag Inmate |
 | Andrew Byron | .... | Cookie Gulag Guard |
 | Ed Ashe | .... | Strudel Gulag Guard |
 | Dawid Szatarski | .... | Red Room Scientist 1 |
 | Cali Nelle | .... | Red Room Scientist 2 |
 | Geoffrey D. Williams | .... | Ross Agent |
 | Robert Wade Pralgo | .... | Ross Agent |
 | Jacinte Blankenship | .... | Ross Agent |
 | Josh Henry | .... | Ross Agent |
 | Jose Miguel Vasquez | .... | Ross Agent |
 | Valentina Herrera | .... | Young Widow |
 | Danielle Jalade | .... | Young Widow |
 | Aria Brooks | .... | Street Kid |
 | Sophie Colgrove | .... | Street Kid |
 | Caister Myung Choi | .... | Street Kid |
 | Shane Askam | .... | Gulag Riot Guard (uncredited) |
 | Ahmed Bakare | .... | Prisoner (uncredited) |
 | Luigi Boccanfuso | .... | Gulag Prisoner (uncredited) |
 | Wong Charlie | .... | Prisoner (uncredited) |
 | Jason Christopher | .... | KGB / Prison Guard (uncredited) |
 | Jordyn Curet | .... | Young Ingrid (uncredited) |
 | Roman Green | .... | Gulag Arm Wrestling Inmate #169 (uncredited) |
 | Rob Horrocks | .... | Polish Soldier 2 (uncredited) |
 | Jaey Howe | .... | Sgt Byrd (uncredited) |
 | Ty Hurley | .... | Prison Riot Guard (uncredited) |
 | Tyrone Kearns | .... | Prisoner (uncredited) |
 | Graham Kitchen | .... | Gulag Inmate #4 (uncredited) |
 | Jorge Leon | .... | Task Force Soldier (uncredited) |
 | Gavin Lee Lewis | .... | Prisoner (uncredited) |
 | Dale Liner | .... | SWAT Team Leader (uncredited) |
 | Marian Lorencik | .... | KGB (uncredited) |
 | Julia Louis-Dreyfus | .... | Valentina Allegra de Fontaine (uncredited) |
 | Obie Matthew | .... | Gulag Riot Guard (uncredited) |
 | Kenny-Lee Mbanefo | .... | Gulag Prison Inmate (uncredited) |
 | Tony McCarthy | .... | Prisoner (uncredited) |
 | Paul O'Kelly | .... | Riot Guard (uncredited) |
 | Edward L. Oliver | .... | SWAT Team Lead (uncredited) |
 | Adam Prickett | .... | Russian Prisoner (uncredited) |
 | Zoltan Rencsar | .... | Prisoner (uncredited) |
 | Stephen Samson | .... | KGB (uncredited) |
 | Oliver Simms | .... | Super Soldier (uncredited) |
 | Joakim Skarli | .... | Russian Soldier (uncredited) |
 | Clem So | .... | Gulag Inmate (uncredited) |
 | David Turner | .... | SWAT Team (uncredited) |
 | Kalina Vanska | .... | Commuter (uncredited) |
 | Chad J. Wagner | .... | Neighbor (uncredited) |
 | Ian Wilson | .... | Russian Spetnaz (uncredited) |
 | John Wolfe | .... | Guard (uncredited) |
 | Daniel Joseph Woolf | .... | Gulag Inmate #120 (uncredited) |