Scarlett Johansson
Natasha Romanoff / Black Widow
Florence Pugh
Yelena Belova
Ever Anderson
Young Natasha
Violet McGraw
Young Yelena
William Hurt
Secretary Ross
Olga Kurylenko
Antonia / Taskmaster
Ryan Kiera Armstrong
Young Antonia
Lewis Young
Scientist Morocco 1
C.C. Smiff
Scientist Morocco 2
Zoltán Nagy
Budapest Clerk
Judit Varga-Szathmary
Mechanic's Wife
Noel Krisztian Kozak
Mechanic's Child
Martin Razpopov
Tattoo Gulag Inmate
Andrew Byron
Gulag Cookie Guard
Ed Ashe
Strudel Gulag Guard
Dawid Szatarski
Red Room Scientist 1
Cali Nelle
Red Room Scientist 2
Geoffrey D. Williams
Ross Agent
Jacinte Blankenship
Ross Agent
Jose Miguel Vasquez
Ross Agent
Valentina Herrera
Young Widow
Danielle Jalade
Young Widow
Sophie Colgrove
Street Kid
Caister Myung Choi
Street Kid
David Turner
SWAT Team (uncredited)
Edward L. Oliver
SWAT Team Leader (uncredited)
Rob Horrocks
Polish Soldier (uncredited)
Oliver Simms
Super Soldier (uncredited)
Yuuki Luna
Widow (uncredited)
Kalina Vanska
Commuter (uncredited)
Jordyn Curet
Young Ingrid (uncredited)
Chad J. Wagner
Neighbor (uncredited)
Joakim Skarli
Russian Soldier (uncredited)
Ian Wilson
Russian Spetnaz (uncredited)
Tyrone Kearns
Prisoner (uncredited)
Gavin Lee Lewis
Prisoner (uncredited)
Ahmed Bakare
Prisoner (uncredited)
Zoltan Rencsar
Prisoner (uncredited)
Adam Prickett
Russian Prisoner (uncredited)
Luigi Boccanfuso
Gulag Prisoner (uncredited)
Roman Green
Gulag Arm Wrestling Inmate (uncredited)
Clem So
Gulag Inmate (uncredited)
Graham Kitchen
Gulag Inmate #4 (uncredited)
Daniel Joseph Woolf
Gulag Inmate #120 (uncredited)
John Wolfe
Guard (uncredited)
Paul O'Kelly
Riot Guard (uncredited)
Shane Askam
Gulag Riot Guard (uncredited)
Obie Matthew
Prison Riot Guard (uncredited)
Ty Hurley
Prison Riot Guard (uncredited)
Stephen Samson
KGB (uncredited)
Marian Lorencik
KGB (uncredited)
Julia Louis-Dreyfus
Contessa Valentina Allegra de Fontaine (uncredited)
Jeremy Renner
Clint Barton / Hawkeye (voice) (uncredited)
Dale Liner
SWAT Team Leader (uncredited)