Charles Xavier / Professor X
Raven Darkholme / Mystique
En Sabah Nur / Apocalypse
Peter Maximoff / Quicksilver
Kurt Wagner / Nightcrawler
Warren Worthington III / Angel
Elizabeth 'Betsy' Braddock / Psylocke
Pentagon General Hastings
Defense Secretary Weisberg
Military Submarine Official
Alkali Communications Officer
Russian Submarine Sailor #1
Pentagon Tech (uncredited)
Logan / Weapon X / Wolverine (uncredited)