Suggestions by @slurpad

Sentinels

as Sentinels in Uncanny X-Men

Cary Elwes

as Robert Kelly in Uncanny X-Men

Sam Rockwell

as Steven Lang in Uncanny X-Men

Jamie Bell

as Calvin Rankin in Uncanny X-Men

Alan Ruck

as Warren Worthington II in Uncanny X-Men

Cara Delevingne

as Danger Room in Uncanny X-Men

Himesh Patel

as Hank McCoy in Uncanny X-Men

Alexander Ludwig

as Piotr Rasputin in Uncanny X-Men

Olivia Cooke

as Jean Grey in Uncanny X-Men

Ralph Fiennes

as Charles Xavier in Uncanny X-Men

John Boyega

as Scott Summers in Uncanny X-Men

Odessa A'zion

as Kitty Pryde in Uncanny X-Men

Hugo Weaving

as Bolivar Trask in Uncanny X-Men

Jason Bateman

as William Stryker in Uncanny X-Men

Tommy Dorfman

as Warren Worthington in Uncanny X-Men

Jason Isaacs

as Erik Lehnsherr in Uncanny X-Men

KiKi Layne

as Ororo Munroe in Uncanny X-Men

Adria Arjona

as Jane Foster in The Mighty Thor

Sam Neill

as Odin in The Mighty Thor

Rufus Sewell

as Laufey in The Mighty Thor