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

C.C. 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

Aurélia Agel

Widow

Zhanè Samuels

Widow

Shawarah Battles

Widow

Tabby Bond

Widow

Madeleine Nicholls

Widow

Yasmin Riley

Widow

Fiona Griffiths

Widow

Georgia Curtis

Widow

Ione Butler

Widow

Aubrey Cleland

Widow

Kurt Yue

Ross Lieutenant

Douglas Robson

Ohio Agent

Liran Nathan

Mechanic

Martin Razpopov

Tattoo Gulag Inmate

Olivier Richters

Ursa

Andrew Byron

Gulag Cookie Guard

Dawid Szatarski

Red Room Scientist 1

Cali Nelle

Red Room Scientist 2

Robert 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

Rob Horrocks

Polish Soldier (uncredited)

Yuuki Luna

Widow (uncredited)

Kalina Vanska

Commuter (uncredited)

Jordyn Curet

Young Ingrid (uncredited)

Joakim Skarli

Russian Soldier (uncredited)

Gavin Lee Lewis

Prisoner (uncredited)

Clem So

Gulag Inmate (uncredited)

Obie Matthew

Prison Riot Guard (uncredited)

Ty Hurley

Prison Riot Guard (uncredited)

Stephen Samson

KGB (uncredited)

Julia Louis-Dreyfus

Contessa Valentina Allegra de Fontaine (uncredited)

Jeremy Renner

Clint Barton / Hawkeye (voice) (uncredited)

Dale Liner

SWAT Team Leader (uncredited)