Suggestions by @chasestucki

Zendaya

as Young Ororo Munroe in X Men (2000-2006-2017) (First Class-Dark Phoenix)

Taron Egerton

as Young Scott Summers in X Men (2000-2006-2017) (First Class-Dark Phoenix)

Saoirse Ronan

as Young Jean Grey in X Men (2000-2006-2017) (First Class-Dark Phoenix)

Angela Bassett

as Ororo Munroe in X Men (2000-2006-2017) (First Class-Dark Phoenix)

Edward Norton

as Scott Summers in X Men (2000-2006-2017) (First Class-Dark Phoenix)

Helen Hunt

as Jean Grey in X Men (2000-2006-2017) (First Class-Dark Phoenix)

Logan Lerman

as Young Hank McCoy in X Men (2000-2006-2017) (First Class-Dark Phoenix)

Brie Larson

as Young Raven Darkholme in X Men (2000-2006-2017) (First Class-Dark Phoenix)

Haley Bennett

as Young Raven Darkholme in X Men (2000-2006-2017) (First Class-Dark Phoenix)

Terrence Stamp

as Erik Lehnsherr in X Men (2000-2006-2017) (First Class-Dark Phoenix)

John Hurt

as Erik Lehnsherr in X Men (2000-2006-2017) (First Class-Dark Phoenix)

Anthony Hopkins

as Charles Xavier in X Men (2000-2006-2017) (First Class-Dark Phoenix)

Terrence Stamp

as Charles Xavier in X Men (2000-2006-2017) (First Class-Dark Phoenix)

Andrew Garfield

as Young Charles Xavier in X Men (2000-2006-2017) (First Class-Dark Phoenix)

Eddie Redmayne

as Young Erik Lehnsherr in X Men (2000-2006-2017) (First Class-Dark Phoenix)

Adam Driver

as Young Erik Lehnsherr in X Men (2000-2006-2017) (First Class-Dark Phoenix)

Andrew Garfield

as Young Erik Lehnsherr in X Men (2000-2006-2017) (First Class-Dark Phoenix)

Matt Smith

as Young Charles Xavier in X Men (2000-2006-2017) (First Class-Dark Phoenix)

Tom Hardy

as James Logan Howlett in X Men (2000-2006-2017) (First Class-Dark Phoenix)

Dougray Scott

as James Logan Howlett in X Men (2000-2006-2017) (First Class-Dark Phoenix)