There have been quite a few spin-off films, but in order to keep things easier, I'll be focusing on the two main X-Men casts.

First, there was a trilogy of films, 2000's X-Men, 2003's X2: X-Men United and 2006's X-Men: The Last Stand. Instead of rebooting the franchise, soro decided to do prequel films with a younger cast. First, there was 2011's X-Men: First Class. Then there was 2014's X-Men: Days of Future Past. That film has scenes from both the past and future, so the original cast and the new cast both appear in the film. The segundo cast returned for two madami films, 2016's X-Men: Apocalypse and 2019's Dark Phoenix.

X-Men co-creator Stan Lee has a cameo in three of the films: X-Men, X-Men: The Last Stand and X-Men: Apocalypse. The only actor who continued to be played sa pamamagitan ng the same actor was Wolverine. This is because Wolverine ages slower than the other characters, because he has a special type of healing factor.

The Original Cast:

Hugh Jackman as Wolverine

Patrick Stewart as Professor X

Ian McKellen as Magneto

Anna Paquin as Rogue

Halle Berry as Storm

Famke Janssen as Jean Grey

James Marsden as Cyclops

Rebecca Romijn as Mystique

Shawn Ashmore as Iceman

Aaron Stanford as Pyro

Bruce Davison as Senator Kelly

Brian Cox as William Stryker

Elliot Page as Kitty Pryde

Alan Cumming as Nightcrawler

Kelsey Grammer as Beast

The segundo Cast:

James McAvoy as Professor X

Michael Fassbender as Magneto

Jennifer Lawrence as Mystique

Nicholas Hoult as Beast

Hugh Jackman as Wolverine

Rose Byrne as Moira MacTaggert

Evan Peters as Quicksilver

Sophie Turner as Jean Grey

Tye Sheridan as Cyclops

Lucas Till as Havok

Kodi Smit-McPhee as Nightcrawler

Alexandra Shipp as Storm

Josh Helman as William Stryker

Kevin tusino as Sebastian Shaw

Peter Dinklage as Bolivar Trask

Oscar Isaac as Apocalypse

Jessica Chastain as Vuk