- Jack Kesy - Black Tom
- Eddie Marsan - Headmaster
- Shioli Kutsuna - Yukio
- Stefan Kapičić - Colossus (voice)
- Randal Reeder - Buck
- Thayr Harris - Sergei Valishnikov
- Rob Delaney - Peter
- Lewis Tan - Shatterstar
- Bill Skarsgård - Zeitgeist
- Terry Crews - Bedlam
- Brad Pitt - Vanisher
- Paul Wu - Hong Kong Boss
- Robert Maillet - Sluggo
- Alan Tudyk - Luke - Redneck #1
- Matt Damon - Redneck #2
- Michasha Armstrong - Swat Captain (School)
- Hayley Sales - Cable's Wife
- Islie Hirvonen - Cable's Daughter
- Jagua Arneja - Tree Trimmer #1
- Gerry South - Tree Trimmer #2
- Mike Dopud - Prison Guard
- Luke Roessler - Cereal Kid
- Andy Canete - Neighbor #1
- Tanis Dolman - Neighbor #2
- Eleanor Walker - Neighbor #3
- Hunter Dillon - Branding Boy
- Sala Baker - Older Firefist
- Sonia Sunger - News Reporter (Irene)
- Abiola Uthman - Chinook Pilot
- Tony Bailey - Black Tom Gang Member
- Alex Kliner - Park Bench Couple
- Valencia Budijanto - Zoo Kid
- Stefania Indelicato - Bystander
- Alicia Morton - Vocalist on 'Tomorrow' (voice)
- Fred Savage - Fred Savage (uncredited)
- James McAvoy - Charles Xavier / Professor X (uncredited)
- Nicholas Hoult - Hank McCoy / Beast (uncredited)
- Evan Peters - Peter Maximoff / Quicksilver (uncredited)
- Tye Sheridan - Scott Summers / Cyclops (uncredited)
- Alexandra Shipp - Ororo Monroe / Storm (uncredited)
- Kodi Smit-McPhee - Kurt Wagner / Nightcrawler (uncredited)
- Hugh Jackman - Logan / Wolverine (archive footage) (uncredited)
- David Leitch
- Jonathon Komack Martin
- Simon Kinberg
- Ryan Reynolds
- Paul Wernick
- Kelly McCormick
- Stan Lee
Capítulo disponible en las siguientes plataformas:
