Suggestions by @giacomochannel

Gwyneth Paltrow

as Pepper Potts (Flashback) in Iron Lad

Halle Berry

as A.L.E.X.I.S in Iron Lad

Ty Simpkins

as Iron Lad in Iron Lad

Eddie Murphy

as H.E.R.B.I.E in Fantastic Four Quadrilogy

Larry David

as Willie Lumpkin in Fantastic Four Quadrilogy

Wallace Shawn

as Mole-Man in Fantastic Four Quadrilogy

Daniel Pemberton

as Composer in Fantastic Four Quadrilogy

Kevin Feige

as Producer in Fantastic Four Quadrilogy

John Krasinski

as Writer in Fantastic Four Quadrilogy

Brad Bird

as Director in Fantastic Four Quadrilogy

Tom Holland

as Spider Man in Fantastic Four Quadrilogy

Jessica Alba

as Electro in Fantastic Four Quadrilogy

Ben Affleck

as Sandman in Fantastic Four Quadrilogy

Jake Johnson

as Trapster/Paste Pot Pete in Fantastic Four Quadrilogy

Oscar Isaac

as Wizard in Fantastic Four Quadrilogy

Emma Watson

as Alicia Masters in Fantastic Four Quadrilogy

David Tennant

as Dr Doom in Fantastic Four Quadrilogy

Kevin Conroy

as Blastaar in Fantastic Four Quadrilogy

Andy Serkis

as Annihilus in Fantastic Four Quadrilogy

Jensen Ackles

as The Thing in Fantastic Four Quadrilogy