Suggestions by @silmarils

Alan Ritchson

as Colossus in X-Men: Evolution

Jamie Bell

as Pyro in X-Men: Evolution

Michael Fassbender

as Magneto in X-Men: Evolution

Ashley Greene

as Scarlet Witch in X-Men: Evolution

Evan Peters

as Quicksilver in X-Men: Evolution

Logan Huffman

as Avalanche in X-Men: Evolution

Dakota Johnson

as Mystique in X-Men: Evolution

Jared Gilmore

as Leech in X-Men: Evolution

Hailee Steinfeld

as X-23 in X-Men: Evolution

William Brent

as Havok in X-Men: Evolution

Dove Cameron

as Boom Boom in X-Men: Evolution

Liam Hemsworth

as Cannonball in X-Men: Evolution

Alexander Ludwig

as Berzerker in X-Men: Evolution

Ben Barnes

as Sunspot in X-Men: Evolution

Maisie Williams

as Wolfsbane in X-Men: Evolution

Lana Condor

as Jubilee in X-Men: Evolution

Dakota Goyo

as Multiple in X-Men: Evolution

Jake Abel

as Iceman in X-Men: Evolution

Nicola Peltz Beckham

as Magma in X-Men: Evolution

Tom Welling

as Beast in X-Men: Evolution