Suggestions by @khabib

Henry Czerny

as William Stryker in Uncanny X-Men (MCU reboot)

Mackenzie Davis

as Domino in Uncanny X-Men (MCU reboot)

Josh Brolin

as Cable in Uncanny X-Men (MCU reboot)

Casey Simpson

as Cannonball in Uncanny X-Men (MCU reboot)

Jace Norman

as Cannonball in Uncanny X-Men (MCU reboot)

Harold Perrineau

as Bolivar Trask in Uncanny X-Men (MCU reboot)

Jon Hamm

as Mr. Sinister in Uncanny X-Men (MCU reboot)

Gemma Arterton

as Moira McTaggert in Uncanny X-Men (MCU reboot)

Sophia Lillis

as Wolfsbane in Uncanny X-Men (MCU reboot)

Madison Hu

as Karma in Uncanny X-Men (MCU reboot)

Samara Weaving

as Emma Frost in Uncanny X-Men (MCU reboot)

Lily James

as Emma Frost in Uncanny X-Men (MCU reboot)

Katheryn Winnick

as Emma Frost in Uncanny X-Men (MCU reboot)

Shawnee Pourier

as Mirage in Uncanny X-Men (MCU reboot)

Kiawentiio

as Mirage in Uncanny X-Men (MCU reboot)

Jasmine Mathews

as Cecilia Reyes in Uncanny X-Men (MCU reboot)

Martin Sensmeier

as Forge in Uncanny X-Men (MCU reboot)

Ekaterina Samsonov

as Magik in Uncanny X-Men (MCU reboot)

Anya Taylor-Joy

as Magik in Uncanny X-Men (MCU reboot)

Booboo Stewart

as Thunderbird in Uncanny X-Men (MCU reboot)