Evan Peters as Pietro/Peter Maximoff

Michael Fassbender as Erik  Lehnsherr/Magneto

Kodi Smit-McPhee as Kurt Wagner/Nightcrawler

Time-table:

•At age of 10, Maximoff twins were taken to facility which experimented on mutants

•6 years latter, events from 'Avengers: Age of Ultron' take place

•A mutant with ability to heal others takes Pietro of ship and cures him. She adopts him. He tries to contact Wanda, but fails

•3 years after, events of 'X-men: Days of future past' take place

•At age of 25, after 6 years, events from 'X-men: Apocalypse' take place

•After 8 months, events from 'Avengers: Infinity War' take place, but only until battle in Wakanda and after fight on Titan (no snap and no battle in Wakanda yet)

All characters go to Marvel