- Martin Freeman - Everett K. Ross
- Uriel Emil Pollack - Poprishchin
- Tony Curran - Derrik
- Irmena Chichikova - Kreega
- Andrei Nova - Russian Man
- Ben Peel - Brogan
- Michael Epp - Ruben Steiner
- Mihai Arsene - Drunk Russian
- Natallia Bulynia - Russian Mother
- Eugenia Caruso - Taxi Driver
- Irina Kara - Russian Professional Woman
- Zsuzsa Magyar - Russian Bartender
- Grace Boyle - White House Aid
- Alex Batareanu - Faux Gate Guard 1
- Cobie Smulders - Maria Hill
- Saverio Buono - Italian Prime Minister
- Ventsislav Yankov - FSB Commander
- Seeta Indrani - Shirley Sagar
- Alex Romashov - Russian Soldier #1
- Christopher Goh - Jack Hyuk-Bin
- Giampiero Judica - NATO Sec. Gen. Caspani
- Chiraz Aich - French President
- Anna Madeley - Pamela Lawton
- Mark Bazeley - Victor Dalton
- Paul Huntley-Thomas - Business News Anchor
- Luke J.I. Smith - Skrull Guard
- Michael Amariah - British Newscaster
- Augustina Seymour - Staffer #1
- Irena Tyshyna - Fashionable Woman
- Juliet Stevenson - Maria Hill's Mum
- Alex Skarbek - FSB Commander #2
- Charlotte Baker - Soren
- Kate Braithwaite - Skrull Soren
- David Bark-Jones - Bob Fairbanks
- Mark Noble - Lt Commander
- Harry Burton - Submarine Commander
- Peter Sandys-Clarke - London Banker
- James Adler - Security Man #1
- Osian Roberts - Mustached Man
- Natasha Patel - Jogging Woman
- Pavel Douglas - Older Man
- Michael Keogh - SAS Officer #1
- Richard Teverson - Chief of Staff
- Jack Gouldbourne - Nuro
- Simon Smith - Finnish Man
- Nisha Aaliya - Raava
- Nisha Aaliya - Rhodey Skrull / Raava
- Tom Scurr - Nurse #1
- Anna Wilson-Jones - Female Surgeon
- O-T Fagbenle - Rick Mason
- Joe Macaulay - SIS Official 1
- Richard Dormer - Agent Prescod
- Lucy Newman-Williams - Joint Chief Chairman
- Mark Lewis - Zirksu
- Sharon Blynn - Soren (archive footage)
- Lashana Lynch - Maria Rambeau (archive footage)
- Charlayne Woodard - Varra / Priscilla Fury
- Katie Finneran - Dr. Rosa Dalton
- Christopher McDonald - Chris Stearns
- Rob Inch
- Donald E G Bentley
- Richard Graves
- Jovan Robinson
- Jonny Hirschbein
- Haleema Mirza
- Beto Dantas
- Matt McRee
- Jennifer Muro
- Victoria Alonso
- Brad Winderbaum
- Jason B. Stamey
- Grainne Godfree
- Brian Tucker
- Aislinn Ní Chuinneagain
- Nadine Richardson
- Kris Bowers
- Dave Jordan
- Trygge Toven
Christopher McDonald interpreta a Chris Stearns en la serie.
Tony Curran interpreta a Derrik en la serie.
Samuel L. Jackson interpreta a Nick Fury en la serie.
Ben Mendelsohn hace el papel de Talos.
Kingsley Ben-Adir interpreta a Gravik en la serie.
Killian Scott interpreta a Pagon en la serie.
Samuel Adewunmi interpreta a Beto en la serie.
Dermot Mulroney hace el papel de President Ritson.
Emilia Clarke hace el papel de G'iah.
Olivia Colman interpreta a Sonya Falsworth en la serie.
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