James McAvoy
Charles Xavier / Professor X
Jennifer Lawrence
Raven Darkholme / Mystique
Oscar Isaac
En Sabah Nur / Apocalypse
Evan Peters
Peter Maximoff / Quicksilver
Kodi Smit-McPhee
Kurt Wagner / Nightcrawler
Ben Hardy
Warren Worthington III / Angel
Olivia Munn
Elizabeth 'Betsy' Braddock / Psylocke
Stephen Bogaert
Pentagon General Hastings
Dan Lett
Defense Secretary Weisberg
Shawn Campbell
Military Submarine Official
Ian Geldart
Alkali Communications Officer
Sebastien R. Teller
Russian Submarine Sailor #1
Vladimir Alexis
Salesperson (non-crédité)
Jason Deline
Pentagon Tech (non-crédité)
Hugh Jackman
Logan / Weapon X / Wolverine (non-crédité)