James McAvoy
(Professor Charles Xavier)
Michael Fassbender
(Erik Lehnsherr / Magneto)
Oscar Isaac
(En Sabah Nur / Apocalypse)
Evan Peters
(Peter Maximoff / Quicksilver)
Tye Sheridan
(Scott Summers / Cyclops)
Kodi Smit-McPhee
(Kurt Wagner / Nightcrawler)
Stephen Bogaert
(Pentagon General Hastings)
John Bourgeois
(Pentagon General Radford)
Conrad Coates
(Pentagon General Fields)
Dan Lett
(Defense Secretary Weisberg)
Adrian G. Griffiths
(Military Official Brown)
Shawn Campbell
(Military Submarine Official)
Ian Geldart
(Alkali Communications Officer)
Sebastien R. Teller
(Russian Submarine Sailor)
Alexander Peganov
(Russian Submarine Sailor)
Hugh Jackman
(Logan / Weapon X / Wolverine (uncredited))
Vladimir Alexis
(Salesperson (uncredited))
Jason Deline
(Pentagon Tech (uncredited))